I've never had that problem with any of my dogs, but I know people
who do & it's a real problem.What I've heard they should travel on an
empty stomach, so no food or water before the trip. Also ask your Vet
for help finding something that might work to lesson the nausea.I know
one lady who's pup hates riding in the car & gets sick often. What finally
worked for her was the no feeding thing and letting the dog lay on the
floor of the car instead of the seat. (seemed to be where it was most
comfortable inside the car) Good luck. I hope they will someday be able
to go camping with you.