The dive is definitely not suitable for novices. Divers should be aware that boat pickup is often impossible along the north coast, and they may have to swim through rough surface waves to the calmer waters round the reef corner for pickup. These caveats aside, Rocky's north coast is a fantastic dive, with absolutely sheer vertical walls and rugged, jagged profile. The reef composition is generally stony, with fairly good coral cover. Fish life is rich and varied, with a strong bias toward the schooling species.
Reef fishes are also well represented.
In particular, very large groupers and Napoleon wrasse are common. As in the rest of the island, sharks are always a tantalizing possibility.