Best Swimming/Play area for short visit?

[Sinjin]

Looking for a beach to let the kids ( 4 kids 6-11 years old) play at for about an hour. We aren't in port that long and want to leave time to visit the whole island. Is there a beach that has the trampolines and toys that doesn't cost a whole lot? Thought about Paradise Beach, but we wouldn't be there long enough to make it worth paying for the arm bands. Any suggestions?

[CGMom]

I've been doing quite a bit of searching b/c we're in the same situation. Paradise beach looks to be the most cost efficient for a quick visit w/kids. In similar places, I've seen a 'per use' fee as well ... might be worth inquiring about that as an alternate option.

[Perfect Stranger]

An armband at Paradise Beach is now $12.00 - certainly not worth spending nearly $50.00 for an hour.