How do north and south Komodo differ?
North and central Komodo are warm, clear and current-driven, while the south is colder, greener and far richer in invertebrate life. Most liveaboards include both, crossing overnight between them.
In the north, water from the Flores Sea sits at 27 to 29°C with visibility often above 20 m. The draws are sharks, schooling fish and tidal drifts at sites such as Castle Rock and Batu Bolong. In the south, cold upwelling from the Indian Ocean can bring the temperature down to 22°C and the visibility to 8 to 15 m, but the plankton supports dense soft coral, sea apples, frogfish and larger groups of mantas.
The practical result is that one 7-night trip can call for two different wetsuits. A 3 mm suit is enough in the north, and many divers switch to 5 mm with a hood in the south. Nitrox helps on the repetitive 20 to 25 m profiles that are common here; the Enriched Air Diver course can be completed on board.