Balydon Shoals

Best months: Jan–Dec

Protected Area

Tulagi Island

Why dive here

With 391+ marine species recorded in the area - including barracuda, blacktip reef sharks, grey reef sharks, humpback whales and orcas - Balydon Shoals offers some of Iron Bottom Sound's richest reef diving. Water sits around 30°C.

Marine lifeBarracuda, Blacktip Reef Sharks, Grey Reef Sharks, Humpback Whales and Orcas · 391+ species recorded

Water30°C · warmest January, February, March

CharacterReef dive · max 15-20m

StandoutExceptional marine biodiversity

Balydon Shoals is one of those spots where you just know there’s always something happening. It’s a long, shallow reef, maybe 400 metres, generally topping out around 18 metres. The flat top gets hit hard by currents, leaving it pretty barren, but that’s just a prelude to the main event. Our pick here is the southwest wall. That’s where the action is. The reef drops sharply to 21 metres, and it’s a total fish magnet. We’ve seen everything from schools of surgeonfish and bonito, to squadrons of bumphead parrotfish. The current just funnels them in. Visibility isn't always fantastic, maybe 12 metres on an average day, but you’re often so close to the schools, it hardly matters. You’ll feel the pull of the water, a steady drift that carries you along, watching the drama unfold. We love drifting along this wall, letting the current do the work while we scan for sharks or rays cruising by. It’s not a site for poking into every crevice; this is about being out in the blue, watching the big stuff move.