The Komodo area offers just about every imaginable type of diving, from current-swept sea mounds patrolled by groups of sharks, tuna and other big fish to dead calm, colorful reefs alive with invertebrates and hundreds of colorful reef fishes. The water temperature varies from a chilly, upwelling induced 22°C to 30°C bath water. Visibility ranges from a clear 25 to 30 meters in the horizontal plane, to a dismal 3 meters, where clouds of tiny fish and plankton allow only macro photography.
The underwater relief varies just as much: sheer walls, one of which we checked out to 70 meters, and it just kept going; caves, cracks and overhangs; slopes of varying angles; sea mounds; sand and mud bottoms.
The variety of marine life in the Komodo area rivals the world's best. There are deep seas both north and south of the narrow straits running between the little islands, and strong currents and upwellings bring nutrients and plankton, keeping everything well fed, from tiny polyps right up to the sharks.
Unlike other areas of Indonesia, the reefs around the southern area of komodo have suffered relatively little damage from the use of dynamite for fish bombing. Much of the area lies within the Komodo National Park, and local fishermen may only use lines and nets.
The shallow reefs between Labuhanbajo and north Komodo, extensively bombed in the past, are in the process of slowly recovering. This damage sector covers perhaps 15 percent of the Komodo archipelago, and even here steep drop-offs and current-swept points offer good diving.