Cauldron

The Cauldron, also known as "The Shotgun," is a channel dive site in northern Komodo, situated in the narrow passage between the islands of Gili Lawa Darat and Gili Lawa Laut, where the channel acts as a natural funnel for tidal flow. The dive starts over a gently sloping reef before the bottom drops suddenly into a large, bowl-shaped depression at around 24 metres — the Cauldron itself — with a maximum depth of 30 metres. From the bowl, the route leads to a shallow, rock-rimmed canyon at 12 metres where the water is squeezed into the powerful slipstream that gives the site its alternate name. Visibility runs 20 to 30 metres.

The three distinct zones of the site each hold their own marine life: in the bowl at depth, whitetip reef sharks, camouflage groupers, midnight snappers, giant trevallies, marbled rays, and leaf scorpionfish are regularly encountered; at the shotgun exit the current dominates; and in the shallow garden around 5 metres, reef manta rays hover over cleaning stations as the flow dies away. Turtles, snapper, grouper, and macro species including pygmy seahorse, cuttlefish, frogfish, and nudibranch are also recorded at the site.

Conditions are extreme and entirely tide-dependent. Currents can reach high speeds, and the channel produces powerful downwellings and washing-machine eddies at peak flow, carrying real risks of separation and uncontrolled depth gain. The dive must be timed to the correct building-tide window and not attempted at peak flow. Water temperature ranges from 25–30°C. The site is rated advanced only.