Diving in Vaavu Atoll

Vaavu is the Maldives' channel-diving atoll. A thin chain of reef is pierced by tidal passes, the kandus, that funnel grey reef, whitetip and blacktip sharks into fast, hook-in drifts. Fotteyo Kandu is the dive the atoll is known for, often called the Mecca of central-Maldives diving: a far-eastern channel of soft-coral caves and swim-throughs with a slim dawn chance of deep hammerheads. Miyaru Kandu, whose name means "shark", is the pure spectacle, with grey reef sharks streaming past a hooked-in line of divers. After dark, the Alimatha jetty draws a large nurse-shark gathering, the country's best-known night dive and its most approachable big-animal encounter. Away from the current, Fulidhoo Caves is the quiet counterpoint, a soft-coral overhang and macro dive close to the island. The marine life follows the pattern set by the channels: sharks, rays and soft coral, with seasonal reef mantas and eagle rays passing through. This is the least-developed atoll in the country, which is exactly why its dive sites are often empty.

Current shapes every choice here. The headline dives are advanced drifts at around 30 metres, so Advanced Open Water, recent drift practice and a reef hook are the practical baseline; calmer interior reefs and the shallow Alimatha night dive suit less-experienced divers. The dry northeast monsoon, December to April, brings the best visibility and the strongest channels, though locals report the seasons have grown less predictable since 2004, so favour January to April for peak conditions. Where you base matters as much as when you go. Fotteyo and the far-eastern sites sit a long, early, extra-cost run from the northern islands, so divers chasing them base on a central island like Thinadhoo or Keyodhoo, while the northern bases sit close to the shark channels and Alimatha. Several local operators and liveaboards work the atoll, and nearby-island operators will often pick divers up, so your accommodation island and dive shop need not be the same. One safety line runs through any Vaavu trip: recreational diving here stays within the national 30 metre limit, and the deep caves off the channels are not a recreational route.

A thin chain of barrier reef pierced by tidal channels (kandus) rather than the isolated pinnacles (thilas) of other atolls, with large outer-reef overhangs and one very long unbroken reef.