Travel companion with independent van for 3 weeks in Brittany

I'm looking for an independent companion to share a trip to Brittany around 26/08/2026 for three weeks. Bike touring, cultural visits, birdwatching, etc., and of course, apéros. I love islands and the sea. I'm 70, a retired mountain and canyoning educator and guide. Everyone keeps their own vehicle, but we share meals, visits, etc. My van—I have a Traffic Font Vendôme van. Thanks