Great ideas above somethings I did not see.
Put snacks where you can get to them with out having to ask someone to get up.
One of the best saves ever - Sand in an upside down ammo can lid on the raft made it through rainbow park in record time.
Poco Pad water Slides off the raft, off of rocks, down the beach. Paco pads for floating on the river.
Good life vests. The extrasport volksvest toddler has a wide neck so they do not get chin rash. The Astral Otter lasts for ever once they reach 50 lbs.
Rig the groover so that you can use it while you float.
friend of the fork, knife, and spoon