A Crab Island Adventure Tour, complete with inflatable waterslides and other water toys, can be a fun, family-friendly way to see the area. Although it's known for its party atmosphere, recent visitors said Crab Island is also fun for families, and note there is plenty of room for everyone to find their own space in the water. People flock to this destination to relax on their boats or to socialize in the shallow water. Crab Island is less of an island and more of an underwater sandbar – and its surrounding crystal clear water attract boaters and ocean lovers from all over the area.