We are arriving 2 days early (really 1 1/2 since our flights arrive in the evening) prior to going to Universal and Disney. We've never been to any of the beaches and were thinking of staying the first 2 nights on the beach. We have no idea where to stay. With 3 kids we want something family friendly that would be fun for the kids. We'd love to stay on the water if there's something not too expensive. Any suggestions?