The impact also tore a large hole in the vessel's hull. Daylight penetrates the majority of the wreck, though there are some areas that can only be explored with an artificial light source. Beware that a few areas have collapsed ceilings - these should not be entered at all. The outer of two islands directly south of Chalong Bay. Its nearness and its relatively sheltered position mean virtually all year around diving.
Currents are minimal.
Beware of boat traffic, especially in the high season. During the rainy season, Coral Island is the best diving destination from Phuket. The diving and snorkeling is at the eastern end of the northeastern beach. The usual reef-fish, such as parrotfish and wrasse, are on display, along with urchins and a selections of nudibranchs. The south of the island is rockier, and this condition continues underwater.