Check for any heat
Rub them down with a cooling gel or cold hose them
I use ice boots right after I jump for about 20min and at the end of the day I like to wrap their legs with cooling gel. If I am at a show I usually put magnetic boots as well!
Wrapping their legs is always good!!
I agree with @mayakaustinene.
Just make sure to walk them around after hosing to let them dry off and get the blood circulating again.
Depends on how high and frequently you’re jumping them - after extensive activity it’s never a bad idea to use ice boots or cold hose them