Bio rock and Coral Reef right on the main beach is rare anywhere in the world. Here it is also free! Just make your way to the beach, hire your goggles and snorkel then enter the water at the marked locations along the beach. Do make sure you put on sunscreen or at least a t-shirt as you will be burned to a crisp within 30 minutes. The reef and bio rock is extensive so you can easily spend a day here. There are no touts or other hassles at all. It is very Wheelchair friendly too.