When you are at a sandbar please do not force the rest of us to listen to your music.
Can't tell you how many boaters were pissed at the group hanging out at the Margate sandbar with the stereo on one of the pontoon boats cranked up all day long. Several times when they thought his battery was dead a bunch of boaters started cheering.
It is one thing to play music for yourself but another to be rude and inconsiderate enough to make the rest of us have to listen to crappy music on crappy speakers.