Corporal already hit my preferred system, but since you're trailering you have a variety of options (that have already been gone over).
Camping my way = having the horse trained well in advance since the horse is the only vehicle (just horse, rider and the very basics.....no "extras"
). Ultimately I like to have my horses ready for 3 things. Staking, hobbling and high line (in that order actually since it's my order of preference
). Although hobbling actually gets used the least due to certain risks that exist in many of the areas that I camp (which is pretty much any place I can get permission (or hide out of sight
I like staking (and hobbling when it's feasible), because it allows for grazing (since I don't have the options of carrying days worth of hay) which helps keep them both fed, occupied and able to move around more during the evening/night/early morning (at no extra cost or effort