I'm taking Jaeger on a long road/camping trip in May. Likely going through VA, to WV, to Kentucky and maybe further. And back of course. In a small/medium car. Me, J, and one friend. I've never gone camping with a dog, and anyone who doesn't know, Jaeger is a fear-aggressive (towards everything living) 3yo GSD male. He loves exploring and car rides, or I wouldn't be doing this.
So far, the list I have for him is:
Long-leash for tying out
Beware of Dog sign - for the campsites
Tennis Balls (He doesn't like many other toys)
Doggie first aid kit
Just looking for tips and info from people who camp with their large dogs.
I camp with three dogs. What a joy.
Bring more food than you believe you'll need. It's the worst feeling in the world to run out of food. It is really easy to underestimate, or something happens so the trip is longer, etc.
As for the tieout, you might want to bring a couple kinds. The screw in, as well as the straight-in. Which works best depends on the soil, recent weather, etc and you won't know 'til you're there.
Extra leash. Just nice to have and might be nice to combine if you want a little more length, but not to the extent of a long-line.
Clips. If your tieout won't stay, or you have to clip around a tree, or whatever happens, extra clips are awesome.
A mat of some kind. When you're outside, hanging around the campfire, and the dog is tied out, it's nice to give the dog a mat to lay on, instead of a hard/dirty/rocky surface.
I know you said you can't bring a crate, but I never go camping without one. They can come in really handy if all the humans have to leave the campsite and the dog/s is/are alone. Even if they're a little freaked out by a storm or something. Nice to have.
Good luck!!!!!!! Camping is fun! I can't wait for the weather to warm up.