Set of 3 Floating LED Pool Speakers. Simply toss the waterproof speakers into the pool and start the music, transmits wirelessly via from a single bass station. When not in the pool, the speaker work equally well on dry ground.
This is one way to keep your tent up out of rain puddles, but probably pretty sketchy in a windstorm. Suspended tent, can be made from old trampoline or similar hoop. - Floating Round Hanging Bed With Waterproof Tent For Camping Or Outdoor Use