Unless where the campsite is is primitive there is usually hoses at the campsite. But P&R's are just done out on the trail somewhere. We carry sponges and some water with us. So we could use the water to wet the sponge and go from there:) In the past I squirt the water up between their front and back legs, and over there withers to run down their shoulders. But water is limited.
Once the P&R is done, you can refill your water bottles for the next leg of the ride.
Becky
I see.
I think standing and lingering in cool creeks even if shallow can cool them down nicely too. Our creeks stay cold even in summer, do yours? Have you practiced any more with the 'sponge on a rope'?