Travel companions for sharing a vehicle to visit U.S. Western parks

Hello, we’re a French couple, aged 69 and 74, and we’d like to visit several national parks in the American West, including the Grand Canyon, Zion, Bryce Canyon, Monument Valley, Valley of Fire, Arches National Park, Canyonlands National Park, Yosemite National Park, and Yellowstone National Park, during a flexible period of 15 to 20 days between April and June 2027. One of us will purchase the America the Beautiful pass for $250, and we’ll of course share the gas expenses. I’ll answer two questions you’re probably asking about us: Why aren’t we renting a vehicle ourselves? Because we’ve hardly ever driven. And why not opt for a guided tour? Most organized trips only visit a few parks at a rushed pace with round-trip flights from France. Instead, we’d like to use this trip to explore iconic U.S. cities and sites for an additional month and a half. If you’d like to visit some of these parks (not necessarily all) and for a shorter duration with us, feel free to let me know. As I mentioned, our dates are very flexible. Thanks in advance. Elisabeth babeth.marcel@yahoo.fr