Dolphin Den is a shallow cave like swim-through that takes you from the inside of the reef to the outside. The maze of tunnels and caverns is so extensive that you can spend your whole dive inside; still it is simple enough not to get lost. There are plenty of openings in the ceiling to make this dive save, however we do recommend staying close to your dive buddy. Inside the cavern one may find thousands of silversides and other creatures like moray eels or a nurse shark. On the outside one can find many lettuce leave slugs and sea hares.
The site got its name because of several founds of Dolphin bones. The last one in the summer of 2007 where a pod of 13 bottlenose dolphins swam into the cavern, got trapped and drowned. The most common explanation of the tragic event is that the dolphins followed a school of silversides into the cavern and got disoriented in the thick cloud of baitfish. For once, silversides caught the dolphins.