Beqa Lagoon

Most divers stay on the Viti Levu side at Pacific Harbour and go out by day boat; a smaller number base on Beqa itself and ride out from the island's resorts. The shark trip is a fixed event rather than a normal dive: a briefing on land, an ordered descent down a line, everyone settled behind a low rubble wall before any food goes in, then a second, shallower dive on the same site. Reef mornings run to the ordinary two-tank rhythm.

The lagoon is large and enclosed by barrier reef, which is why conditions vary so much across it. The inner bommies rise from sand as isolated towers, sheltered enough that a rough day outside barely registers on them. The barrier's outer edge is another matter, and the run out to it is long enough that those dives tend to be their own trip rather than an add-on. Wind and tide decide which half of the lagoon you get on any given morning.

What makes the shark dive workable is how tightly it is structured. Fijian handlers work the feed while safety divers stand off with poles, divers stay put behind the wall instead of moving with the animals, and the smaller reef sharks usually come in ahead of the bulls. It is a spectator's dive rather than a roaming encounter. The fixed vantage point is the main constraint on photographers, who get one angle and have to work inside it.

It suits divers who came for sharks and are content to build a week around them, and it works for mixed groups, since a nervous partner does the same dive from the same wall. The trade-off is that inshore water takes run-off from Viti Levu's rivers after heavy rain, so the wetter months trade visibility for warmth. Divers who want dense soft coral and drift walls will get more out of Fiji's northern reefs and should treat Beqa as a few days rather than the whole trip.