Hundreds of small damselfishes make this a top island dive. For years divers have hand-fed the fish of Masts Ray Bay which include some not-so-small Maori wrasse. 

The terrain is diverse with scattered bommies starting at 10-12 metres and reaching up to within 2 metres of the surface. Acropora corals dominate, with large plates on the top of the bommies and fields of staghorns in the shallow waters near the beach. 

A small but spectacular coral canyon (10 metres) can be found about 50 metres off the western end of the beach. 

Manta rays are common in the winter months, May to September. Excellent protection from all winds except the northerlies.