Here is a list of what we take camping when
we are gone for more than a few days.

Two dog leashes, 2 collars with id tags/license
per dog. (you never know when a leash or collar will break)
Tree trolly or tie out, tick/flea spray,
towel,comb, brush, tick remover tool, tweezers,
first aid kit. food dish, plenty of dog food, water, poop
pick up bags, shampoo, rabis certificate (even though we never have been asked to show it) plus vet info.
toy, and dog rug. I can't think of anything else right now.
After all that, I bet you do not have any room
for you and your stuff. lol