The black corals with lionfish inhabitants, are a delight. The island itself is really just a large rock surrounded by a small fringing reef, walls with undercuts and cavelets, and a vertical tunnel. Reef fishes and invertebrates are plentiful. Pelagics like hammerheads and whale sharks sometimes visit. The only drawback was the number of divers.
Visibility is usually inferior here, but the macro opportunities make up for it.
Sunken Island had little current when we were there, which meant few pelagics. The huge lionfishes were active and there were several large schools of juveniles. Although the House Reef is not so colourful, a surprising number of interesting little guys live here. We took one night dive, in which we found some great stuff, but there was an outbreak of worms, so it was impossible to photograph anything through all the spaghetti. A few days later, they were all gone.