I really loved Thailand, but it was too touristy for my taste. So I'm hesitating about going back and wondering if Cambodia or Vietnam would be less crowded with tourists...

Hi everyone,

I’m leaving for a little over 3 months starting at the end of January—Thailand (January-February), then Laos (February-March), Cambodia (March), and Vietnam (March-April).

I see that a lot of travelers don’t seem to book accommodations in advance and just go with the flow.

Given that I’ll be traveling during peak season (January to early May) and these are still very popular destinations, do you think I’ll be able to easily find places to stay on the spot without booking the day before?

Thanks!

Juliette

Hey everyone,

I’m planning a road trip through Southeast Asia with my girlfriend starting in mid-January 2026, and I’m torn between two possible itineraries.

The goal of the trip is to explore the region before catching a flight to Tokyo at the end. The main difference between my two options is the order in which I’d visit Thailand, Malaysia, Cambodia, Vietnam, and Laos.

👉 Itinerary A: Paris > Thailand (Chiang Mai) > Southern Thailand > Malaysia > Flight from Kuala Lumpur to Siem Reap in Cambodia > Cambodia > Southern to Northern Vietnam > Flight to Tokyo



👉 Itinerary B: Paris > Malaysia (Kuala Lumpur) > Southern Thailand and Bangkok > Cambodia > Southern to Northern Vietnam > Flight from Hanoi to Vientiane (Laos) > Laos > Northern Thailand > Flight from Bangkok to Tokyo



Initially, I thought about doing Malaysia > Thailand > Laos > Vietnam > Cambodia, but after looking into it, it’s tricky to get to Tokyo from Cambodia—there’s no direct flight.

My questions: - Which of these itineraries seems the most logical/smooth in terms of transportation? - Which one do you think offers the best overall experience? - Do you have any other route suggestions or visit orders?

Thanks in advance for your feedback! 🙏

Does it seem feasible and reasonable to travel to Laos (or Cambodia) as early as January or February 2025? I don’t have any precise information about the damage these countries have suffered.

🙂 Hi everyone!

Hope you're all doing well! It's been a while since I last traveled, but I'm finally heading out again soon!

For those familiar with SOUTHEAST ASIA, I'm planning to leave in mid-June (with the trip ending at the latest in November), and I don’t have a precise idea of exact places or itineraries yet. The thing is, this period is usually the rainy season...

Any advice? I was thinking of Malaysia or Indonesia, like Sulawesi, for example (all countries and islands in Southeast Asia interest me except Bali).

Any recommendations? I’m doing my research online, but if anyone here has the time and knowledge, I’d love to hear from you.

Thanks everyone, take care and stay happy! ❤️

Hi everyone, I’m starting to plan my next trip to Southeast Asia this winter (2.5 months, leaving in early December), and here’s a rough outline of my route—I’d love to share it with you and hear your thoughts and tips.

- I’ll start in Bangkok and already have three spots I’ve marked: Ayutthaya, Kanchanaburi, and Uthai Thani (I haven’t been to any of these places yet). - Next, I’d like to cross the country from west to east to reach the Laos border. I’d love suggestions for any interesting stops along this route—I don’t know this part of Thailand at all... - Then I’ll head into Laos, probably at Savannakhet (you can usually get a visa at the border). - > I’m tempted to spend a week in Hoi An, Vietnam, since I loved that city and the area when I visited two years ago. No visa needed for Vietnam now, so it could be a nice little detour. On the map, it doesn’t look too far, but I know you’ve got to be careful with these things, and I’m not sure if it’s a good idea. Any opinions on this? - Back to Laos (maybe via Dakta), and I’ll head south along the Mekong, probably doing the Bolaven Plateau loop that I missed last time. Then Paksé, the 4,000 Islands... I’ve been before, but I’d happily go back. - Crossing into Cambodia, I’ll follow the Mekong down to Phnom Penh (I know this area and love how untouristy it is). From there, I’ll probably spend a few days in Kep (quieter than Kampot). Still undecided, though. - Then back to Thailand (BKK), likely by plane from Phnom Penh since the borders between the two countries are currently closed (plus, let’s be honest, Cambodian roads... ;-). We’ll see how things look when the time comes. - After that, I’d like to explore southern Thailand, taking it slow with short hops. I’ve got my eye on Khao Sok National Park, and I’ve heard good things about Krabi... Again, I don’t know this region well, so any info or tips would be great.

So, I think this should be doable in 2.5 months, especially since I prefer short hops of 300 km max to avoid getting too tired, and I like staying 2-3 days in each place to explore. Plus, I’ll take a week off to relax if I find a spot I love—maybe by the sea for some real downtime.

Thanks for your feedback and for sharing your favorite spots! Pascal

Hi, I’m planning to travel from April 12 to 24, 2025, for my first solo trip. I’m torn between two destinations: Thailand or Vietnam. Which one would you recommend? Thanks so much for your advice!

Hi, just a quick note mainly for Samsong, even if he’s still giving me the silent treatment. I’ve been in Nan since yesterday and... I love it! So thanks, Thierry. It’s exactly the kind of place I’d been dreaming of... Even if communication is a bit tough, it’s not impossible. They don’t even know the most basic English words! Everyone laughs and they’re the first to pull out their phones to... translate. They’re even quicker on the uptake than I am. And then there’s the time I say Nan (pronounced "Nane"). They don’t understand me. After a while (sometimes a long one), they reply: "Ah, Nan?" (pronounced "Nane") 😵🤳😃

The town is exactly how you described it back in 2022. Though I’m surprised to find so many trendy, slightly intellectual "Cafés." Apparently, coffee—excellent everywhere—is king in Nan. It feels like a university town. And it seems pretty lively at night! But for now, I’m going to bed early. I caught a nasty cold, which didn’t stop me from walking 12 km this morning. But I came back to my accommodation by 3 PM (gorgeous and luxurious with top-notch service for 800 baht—even a cute local welcome gift this morning, plus other unexpected touches like a bottle of honey and chrysanthemum flowers for tea. The lady must’ve guessed I was coming down with something yesterday). I thought about going out for dinner but didn’t have the energy. I think I’ve got at least 39°C fever...

Anyway, I’m sending you this message, Thierry, because you mentioned a daily bus to Chiang Rai, so I didn’t look into it. But now it’s a real problem—no buses to Chiang Rai, only taxis. At least 2,500 baht for the cheapest one! I’ll check the bus station directly tomorrow. Online, it’s all taxis, no buses. I’d like to explore the countryside/mountains if I can find an affordable driver. Any ideas for destinations or itineraries? Thanks.

Hi fellow travelers! I’m planning a little 3-week trip to Vietnam in mid-to-late March. It’ll probably be the only time I can go. I enjoyed Thailand but clearly preferred Laos—it was calmer. For Vietnam, I don’t have a precise idea of what I want to see yet, and I’m the type to improvise a bit once I’m there. I’m not super adventurous but I’m curious, and I prefer street food over restaurants, markets and off-the-beaten-path villages over big attractions. But I don’t want to miss the must-sees either. So, given that I’ll only be there for 3 weeks, I’m wondering: should I absolutely stick to either the north or the south? Or is it possible to have a nice, not-too-hectic trip by spending, say, one week in the south and two in the north?... (I’d take a multi-city flight for arrival and departure) What do you think? Thanks! 🙂

Hi there,

I’m looking for a beach spot within 3 hours max of Bangkok for the end of my trip (January). I know full well I won’t find that postcard-perfect vibe of the more remote islands! But I don’t have a choice. If you’ve got any ideas... no high-rises, obviously not Pattaya, somewhere quiet, swimming possible, a hotel right on the beach (and not too dirty, the beach itself!) I’ve looked at hotels around Ko Samet or, across from it, on the mainland. I spotted the Bann Pae Cabana. But nothing really exciting on either side. New ideas welcome! 🙂

Hi there, Big travel year in Asia for me. I’m heading to Southeast Asia for a month in mid-July. The dates aren’t flexible since I’m going primarily for a wedding (Laos). So, I’ll start my trip in Laos for 4 days, then head off... where?

I’ve already done a trip exclusively in Laos a few years ago. I also visited Vietnam for the second time last year, so I’d love to explore something new. I was thinking of Cambodia (but only for Angkor) and northern Thailand, which I haven’t seen yet (Chiang Mai, Chiang Rai, Mae Hong Son, Nan, Phrae, Phayao, Pa Hin Ngam National Park), and wrapping up with a few nights in Koh Samui. My question is about the weather. From what I’ve seen, Koh Samui seems to be spared during this period. But for Angkor and northern Thailand, I’m not so sure—it feels like a gamble. And I’m really not in the mood for rainy vacations, since I already get enough gray skies where I live 😅.

So, I had another idea: after Laos, I could head to Bali (or another Indonesian island) where it’s supposedly the right season. The flight ticket price is exactly the same, including a one-way to Bali and the return from Bali (with a layover in Bangkok). For those who’ve traveled in July, what do you think? Is there a big risk in trying northern Thailand and Angkor?

Thanks in advance!

Hi there, I’m planning a trip to Laos in November 2025. I’m not really sure what to visit. I’ve heard there are local festivals around that time. Open to any suggestions for planning my trip. There’ll be 4 or 5 of us. Best,

Hi everyone, I’m looking for addresses for guesthouses or, even better, houseboats or rafting houses on the River Kwai, between Kanchanaburi and Sangkhlaburi, to spend a few weeks contemplating this beautiful river. Thanks for your suggestions! Premaria

Hi there, Yesterday in the Thailand section, 100% of the new threads were just about beach destinations 😕... So here’s the counterattack in the form of this photo thread, dedicated solely to the countryside: the locals, their livestock, fields, farms, rice paddies, small rivers, and agricultural machinery. If you’ve got any pictures that fit these categories, feel free to add them! Comments welcome. For each photo, I’ll (or you can) indicate the area where it was taken.

Kanchanaburi:

Kanchanaburi:

Sri Chiangmai:

Soppong:

Tha Wang Pha:

Hello and happy to be back on this forum! We’re planning our trip to southern Vietnam in February. We visited central Vietnam two years ago. For now, based on reading various posts, we’ve drafted the following itinerary, keeping in mind that we travel by public transport and rent bikes or motorbikes when needed. We also like to take our time! So far, we’ve only booked our flight tickets: 1 Paris – HO CHI MINH 2 & 3 Visit HO CHI MINH 4 Day trip to Cu Chi 5 Transfer Ho Chi Minh / Cat Tien 6 & 7 Cat Tien 8 Transfer Cat Tien / Cai Be 9 & 10 Cai Be 11 Transfer Cai Be / Vinh Long or Binh Island 12 Vinh Long or Binh Island 13 Day trip to Sa Dec 14 Bus transfer Vinh Long / Can Tho 15 & 16 Can Tho 17 Transfer Can Tho / Chau Doc 18 & 19 Chau Doc 20 Transfer Chau Doc / Ha Tien 21 & 22 Ha Tien 23 Boat transfer to PHU QUOC 24, 25 & 26 PHU QUOC 27 Flight to Paris

Actually, we’re on a rhythm of 1 transfer day and 2 visit days, which doesn’t fully satisfy us. That’s why we’re wondering: Is it possible to stay in one accommodation for visits to Cai Be, Binh Island, and Vinh Long (including our day trip to Sa Dec)? Do you see any other ways to adjust the itinerary? Any oversights? We also still need to look into the transfer details. Thanks for your tips! fg

Hello. In 1996, we crossed Vietnam from Saigon to Hanoi by motorbike—Minsk bikes we bought in Saigon. I haven’t been back since, and it seems like a lot has changed.

- We’re heading to the south (well, the north and center) with the family in July-August (3 people).

- Is the road network more developed now? Back then, there was only National Route 1 from south to north. I’m thinking of renting a car this time (no motorbike with the family—though in ’96, they had a Jawa sidecar for sale, and we hesitated… maybe it’s for the best).

- Is Halong Bay really something to avoid because of overtourism? Even back then, it was pretty crowded. Is there a less touristy alternative?

- We’ll be traveling from Hanoi down to Danang (the only city we didn’t stop in back in ’96). Even though it’s a bit overhyped in a Chinese-tourist kind of way (from what I’ve read), we’re only going for the beach—pure relaxation for 7 days. The beaches are stunning, and I know the South China Sea is warm like coffee.

- Then, we’ll visit Hoi An, where I stopped in ’96. It was already popular with backpackers back then, but no glowing boats or all the touristy fuss!

- After that, Hue, where I have great memories—it’s a beautiful city.

- And also the nature around Ninh Binh, followed by 2-3 days in Hanoi.

That’s the plan. I’d love to hear any tips to avoid mass tourism, and if anyone’s done this before: - Is it possible to rent a car in Danang and drop it off in Hanoi?

Thanks, and long live the Nam! !

Hi everyone,

I couldn’t find any recent posts on this topic, so I thought I’d create a new one. We’ve just started planning our family trip to Vietnam this coming August. We’d like to travel from North to South, starting in Hanoi and ending in Ho Chi Minh.

Usually, we rent a car when we arrive and manage on our own. But I get the feeling that in Vietnam, it’s more complicated... It seems like the only option we have is to rent a car with a driver? Is that really the case?

I’m thinking of starting with a cruise in Halong Bay since we arrive on my partner’s birthday, and I wanted a beautiful setting to celebrate it. So, is the option of having a driver wait for 2 days while we’re on the cruise really feasible?

The rest of the itinerary isn’t planned at all yet. I’d love to hear your tips. We’re traveling from August 8th (morning) to the 26th (afternoon).

Thanks for your advice.

Hi there, I’m so glad the VoyageForum is back up. Reading 'Montagnard74’s' Laos trip report (which I read yesterday) made me want to share my own (which I already posted a year ago on another forum). Here’s a little recap of our 3 weeks in northern Laos, plus a few days in Vientiane. By the way, we could easily go back to the north—there’s so much to see and do; probably in a few years.

This was our 3rd trip to Laos after having already done:

1st trip in 2012 (3 weeks), a quick overview: Vientiane Vang Vieng Luang Prabang Plain of Jars

2nd trip in 2017 (1 month): Vientiane all the way to the 4,000 Islands via Thakhek, Kong Lor, the Bolaven Plateau, Savannakhet, Pakse...

Our 2023 itinerary (1 month): Vientiane Luang Prabang Muang Ngoi Nong Khiew Luang Namtha Muang Sing Boten Vang Vieng Vientiane

Some general info (2023): For those who’ve already been to Laos: everything has gone up a lot—I think prices have almost doubled for transport, accommodation, meals... everything. But Laos is still a budget-friendly country for us. As a couple, we spent 1,100 € for a month, all included (and we definitely didn’t skimp on massages :)).

Don’t trust the transport signs posted everywhere—at travel agencies, bus terminals, hotels... THEY’RE ALL WRONG (especially the schedules). They haven’t been updated since before Covid.

There are hardly any bikes for rent anymore, but scooters are easy to find everywhere. We switched our mode of transport toward the end of our stay: from bikes to scooters, which let us go farther. In Vientiane, we only saw one bike rental place, near Ong Teu Pagoda.

BCEL bank doesn’t charge a commission on foreign currency exchanges. Using ATMs is expensive due to fees. Outside Laos, Lao kip are basically worthless. There’s so much inflation that I couldn’t find a single bank or exchange office willing to swap the kip we had left. So, don’t exchange too much toward the end of your trip.

Some little tips from our experience (2023): The Muang Koua to Muang Ngoi boat still runs daily. At the dam, you have to get off and take a bus, then get back on the boat.

The boat from Muang Ngoi to Nong Khiew only leaves at 9:30 AM (don’t miss it or you’ll pay a lot for a private boat). From Nong Khiew to Muang Ngoi, there are at least two boats a day.

From Luang Namtha to Muang Sing: 4 to 5 buses a day, the last one leaves around 3:30 PM.

From Luang Namtha or Muang Sing to Nateuy or Boten (to catch the new train): 3 to 5 buses a day.

The new train is really hard to book—it’s often fully booked 48 hours in advance, even the local train (5 hours from Boten to Vientiane instead of 3 hours on the high-speed train). (That makes it tough to travel day by day, which we love... too bad.) For baggage checks: don’t bring anything flammable (sprays...) or sharp. My mosquito repellent (flammable but in a small plastic bottle) got through. Water bottles and a tiny pocketknife are okay. But it seems to depend on the station.

Some guesthouses prefer to be paid in dollars, otherwise the price is much higher.

If you’re entering Laos from Vietnam via Dien Bien Phu, you have to get your visa at the embassy in Hanoi—otherwise, you’ll be refused at the border (no e-visa or visa on arrival).

Apart from Luang Prabang, Vientiane, and Muang Ngoi/Nong Khiew, there are very few tourists.

Some bus prices (in addition to those mentioned in my trip report) (with pick-up) 2023: Luang Prabang to Luang Namtha: 320,000 kip per person, 9h LP to Phonesavan: 250,000 kip per person, 7h LP to Phongsaly: 450,000 kip per person, 13h LP to Huay Xai: 420,000 kip per person, 14h Train Nateuy to Vientiane: 400,000 kip per person LP to Chiang Rai: 780,000 kip per person, 18h LP to Hanoi: 900,000 kip per person, 24h LP to train station: 50,000 kip per person LP to airport: 100,000 kip per person Vientiane from train station: 180,000 kip by taxi

Boats: LP to Pak Beng: 300,000 kip per person, 1 day LP to Houay Xai: 500,000 kip per person, 2 days LP to Pak Ou: 180,000 kip per person, 5h

struggling to find a decent flight to Thailand?????

Hi everyone, I’ve been traveling in Asia for over 30 years, often to Thailand, but only during the school holidays in February, April, and especially in the summer, departing from Marseille or Lyon.

For some time now, I’ve noticed it’s really hard to find a flight at a reasonable price (under 900 €) and, more importantly, with a decent itinerary (we’re often offered 2 or 3 layovers with total travel times of 40 or even 50 hours), and this is the case almost a year in advance. This is something we never saw even 4 years ago—I’m wondering: are there fewer flights available now...?

Marsyork

Hi everyone, I’m planning to go to Thailand in January 2026 for two months, so I’d love to hear about all your experiences!

For flights, how do you book a ticket without knowing the exact return date? And for accommodation, what do you recommend—renting from France or once I’m there?

Thanks in advance to everyone!

Dear VoyageForum members,

For the past two months, I’ve been checking flight ticket prices to spend 4.5 weeks in Thailand from early July to early August. I’m traveling from Brussels with a young child, so I want to avoid layovers. That’s why I’m only looking at Thai Airways’ website and only choosing direct flights.

At the end of August, I saw tickets for 955 € per person. On October 1st, they were 1,225 €. Today (October 22nd), the price is the same as on October 1st. (Same dates: Departure: July 4th, Return: August 7th.)

My question is: Is it possible these prices will drop significantly in the coming months?

Note: I clear my browser cache before every search, which I always do during the week and in the evening. This time, I also checked with my work computer, which has a VPN. So, the price isn’t influenced by cookies.

Thanks in advance for your feedback and tips.

Damien

Hi there, We're thinking of spending 3 weeks in Koh Samui at the start of 2026. Where can we find accommodation close to a pretty beach that's not too touristy but not isolated either, near a small town or village? We've already been to Surin Beach on Phuket Island. We really liked that spot, but we've heard Koh Samui is great too. Thanks for your tips!

Hi, A message for regulars or expats. Since I travel to Thailand often, I usually get a Thai Thrue mobile plan at 7/11 for a few hundred baht, and it works really well. This year, I’m going for 3 months and I’d like to keep my phone number with Free. It’s not much more expensive, with 35 GB of data per month and keeping my number (you just have to block MMS reception, which is the only extra charge). I also vaguely saw online that Free has an agreement with Thrue. What do you think? Have you ever tried Free in Thailand?

Hi there,

I’m about to take a trip around the region in March. According to the "experts," which cities are really worth the detour? My key criteria: a slightly lively downtown + walkable. I’ve already been to the region a few years ago, but my memories are pretty mixed (Ubon Ratchathani, Udon Thani, Khon Kaen).

Thanks😎

Hi everyone,

So happy to discover by chance that VoyageForum is back! We’re leaving in a few days for Thailand with our two kids, aged 12 and 15. We’re considering stopping by Khao Sok but don’t want to do a typical 2D/1N or 3D/2N excursion with an overnight stay on the lake—it’s way out of our budget 🤪. Still, the place seems worth the detour. We’ve planned to spend 2 nights there (arriving in the late afternoon on the first day) and I’d love to do a full-day private boat tour on the lake and a hike (half-day or full-day). Do you think it’s doable to book on the spot if we arrive a bit late on the first day? Or is it better to book in advance? None of the websites for booking these services inspire confidence—I get the feeling it’s a real lottery afterward for getting an interesting and friendly guide. But I’m worried it’ll be the same on-site since everything seems so standardized. Do you have any firsthand experience? Maybe even a Facebook contact or something for a guide? Are the prices still really that expensive if we don’t stay overnight on the lake? I’ll admit I’m not sure if we should even stop there anymore...

Thanks in advance!

Marmite

Hi, I’m heading to Thailand (first time!) in a week. We planned to be in Khao Sok National Park on February 1st and 2nd. I got a message yesterday saying it wouldn’t be possible to do any activities on Lake Chiew Lan as planned because of “weather conditions.” Despite all my research, I can’t find any info that supports this. Does anyone have recent updates? Is it really impossible to visit the lake, and if so, are there any alternatives? They’re offering a walk to Bang Hua Rad waterfall instead. Any thoughts? We’re really disappointed—the lake looked amazing 😢

Hi everyone,

So excited to be back on this forum of fellow travel enthusiasts to ask for advice about my upcoming two-week trip to Thailand in March 2026.

Given that it’ll be the start of the intense heat and burning season, I’m wondering about my itinerary, which would focus on the central/southern part of the country.

Ideally, I’d like a mix of relaxation in a nice setting, culture (temples or old palaces), and I’m keeping six days in Bangkok, which I love :)

I’m planning to get around by train, car (through an agency), or plane if it’s easier.

Option 1: HUA HIN – 3/4 days (day trips to PHETCHABURI + SAM ROI YOT + ARTISAN MARKETS) KANCHANABURI – 3/4 days NAKHON PATHOM – 1 day BANGKOK – 6 days

My doubts: -Will the sky be too hazy (from smoke) for good photos? -Will Kanchanaburi and its surroundings be less enchanting during this period (dry landscapes)?

Option 2: PHUKET (4 days): exploring the island + PHANG NGA Bay HUA HIN (3/4 days) BANGKOK (7 days)

My doubts: -How do I get from Phuket to Hua Hin? It seems like flying isn’t an option, and I’d have to take a long trip up the southern coast or return to Bangkok to catch the train. -Is Phuket even remotely pleasant during this ultra-touristy period? -Is Karon a good base for exploring Phuket?

Option 3: PHUKET KAO SOK SURAT THANI? BANGKOK

My doubts: -I’d like to add a destination with beautiful temples in this area, but maybe Surat Thani isn’t the best idea.

Option 4: SURAT THANI >> HUA HIN (6/7 days) BANGKOK

Doubts: -I’m worried this route might be too tiring if I have to move every two days.

I’m open to any tips—or even a completely different itinerary if you have other ideas.

Thanks so much / Khob Khun Krap :)

Hi everyone, I hope you're doing well! Just a quick question—I wanted to know, excluding accommodation and flight tickets, just for leisure activities and food on the spot, I go out a lot so I’d like to know what the costs are for a budget that includes some outings, drinks, eating (local food), and a few massages (local massages). Could those of you who know share some prices, please? Do you think a budget of 100 € per day is reasonable? I’ve read in some places that it’s more than enough, and in others that it’s really tight 😕 I hope I won’t have to watch every penny 😅 I’m staying for two months, from May 27th to the end of July.

just one question for February—should I pick Phuket or Krabi?

Hi there, As mentioned earlier, we're heading off for a month to explore some parts of Thailand in July/August, and I’ve got a few practical questions I’m hoping you can help with based on your experiences. Thanks in advance!

- Can you choose the denominations at exchange bureaus/ATMs? How do you avoid ending up with only 1000-baht notes when exchanging large sums? - If not, is there an easy way to get change? Any alternatives to buying stuff at 7-Eleven? - Can you buy train tickets from Thonburi to Kanchanaburi in advance? Is there usually space available, considering some people do the Death Railway day trip from Bangkok to Sai Yok Noi? - Is there room for luggage on the trains to Kanchanaburi? We’ll be traveling as a group of four with two large checked-baggage-sized suitcases (25 kg each). - Kanchanaburi: Most day tours allow around 3 hours at Erawan Falls. Is that enough, or is it worth spending the whole day there, especially at the start of the rainy season when it’s a bit greener? - In Sam Roi Yot, are there taxis/Grab/Bolt available for exploring the surrounding areas? I’d appreciate any numbers or addresses. - Does True (7-Eleven) have good coverage across Thailand, from Sam Roi Yot to Chiang Rai, or should we go with AIS? - In Bangkok, if you need to switch BTS lines, do you need a new ticket, or can you change lines as long as you don’t exit the station?

Happy to provide any additional details if needed.