From my readings here on the CF, I don't think cats in general like to travel. Car/plane rides will stress them out, as will any foreign environment. They will not eat or use their litterbox for extended durations, the prolonged stress (during travel itself) can cause them to get sick as well.
I'm sorry but the whole glamping with the cat idea doesn't seem secure with me...too many things can go wrong. Tents alone aren't enough, neither are most regular screens--aren't they mostly to prevent mosquitos/bugs from biting us anyway? There's no guarantee the cat(s) will not rip out the screens/tent, escape, and being in a foreign environment yourself, how would you go about retreiving a lost cat? Once "indoors only cats" are outside (in the wild), they are often spooked and will hide, no matter how much you call them. Look at thread where cats have escaped their own home--not everyone is lucky enough to find them again. You also have no idea if your accomodation will even accept your cats to stay with you...? Most people travel with dogs, how will your cats react if faced by a loud, nosy dog chasing/poking into "their territory"? There are so many more reasons, but I think this is more trouble for both you and your cats than it's worth.
If you can afford glamping, you might think of building a screened in porch or a large catio for your cats in the near future if you'd like them to enjoy the outdoor smells and sounds safely. They'd be in heaven, and WE at Catforum will all be indeed jealous, too.