Meradhoo Kandu

Meradhoo Kandu is run on the current, so the dive is a pass through the channel rather than a static reef tour. You start on the ocean side of the outer reef and drift in through the kandu, and the pay-off comes early at the channel mouth and along the outer wall. On the flow the big animals appear out of the blue against streaming reef walls: trevally schools chasing baitfish, whitetip reef sharks holding in the current, barracuda and tuna off the edge, and the occasional eagle ray or reef manta crossing the channel. Spinner dolphins use this channel to enter the atoll, so they turn up now and then on the way through.

When you want to hold and watch, you tuck behind the reef on a hook where the flow runs hardest, rather than fighting it. As the drift carries on, the channel opens onto the healthy ocean side, branching and table coral broken by patches of sand, with dense macro life, leaf scorpionfish, glassfish and turtles working the reef. The back half of the dive trades the pelagic wall for reef and small stuff before the boat picks you up at the surface.

This is the standout channel of Gaafu Dhaalu, and the reason is a combination the atoll's calmer thilas cannot match: strong-current pelagic traffic and genuinely healthy ocean-side coral in the same dive. The flow that pours across the far-south reef is funnelled into the channel and stacks the marine life where the current concentrates, so a firing tide delivers trevally schools, whitetips, barracuda and rays over a reef that has come through in good shape.

It also has a signature the neighbours do not. Pods of spinner dolphins move through this particular kandu on their way into the lagoon, an encounter the busier central Maldives rarely offers. Where the narrow channel nearby is the leopard-shark drift and the pinnacles are the quiet coral dives, Meradhoo is the marquee channel a far-south trip is planned around, big, blue and lightly dived.

Plan for current and time the dive to the incoming tide. The channel rewards a firing flow and goes quiet on slack water, the reality of kandu diving in the far south, so the crew picks the drop to the conditions. A negative entry is sometimes used to get down to the channel before the surface flow pushes you off, so be ready to descend promptly. Carry a reef hook for the observation points where the current runs strong, and an SMB for the drift-out and pickup.

The clearest water and most reliable current come in the first quarter, the northeast monsoon from January to April, though the site is diveable year-round on resort schedules. Operators work the channel within recreational range, so plan gas and no-deco limits for a profile to around 25 metres and consider nitrox. Getting here is a long way south: a domestic flight to Kaadedhdhoo and a short boat transfer, with diving run through resort dive bases and far-south liveaboards.