Reefwander

Kota Belud · Malaysia · Reef · Muck & macro

Mayne Rock

Leopard sharks and marble rays resting in the sand between giant boulders

Mayne Rock is a submerged reef of giant boulders off the Kota Belud coast and one of the most popular sites in the area. Its rock formations give a varied topography, with sand between the boulders, schooling fish over the top and a long list of small critters on the rock faces.

Also known as Maine Rock, Main Rock, Mayne Rocks.

Where it is and how deep

Depth profile of Mayne Rock: typical dive 7–30 m (23–100 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit7 m30 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

6.4418° N, 116.2744° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.

The dive

The dive runs among huge rock formations between 7 and 30 m. The giant boulders are covered in pink soft coral, brightly coloured feather stars and tube worms, and the gaps between them open onto sandy patches where leopard sharks and marble rays often lie on the bottom.

Fusiliers, snapper and sardines swarm over the rocky contours, and larger jacks and mackerel dart in to pick them off. Closer in, the rocks hold ghost pipefish, scorpionfish, frogfish, juvenile reef fish, spider crabs, cowries, nudibranchs and tiny shrimps for anyone who slows down to search.

Marine life and season

  • Stingrays
  • Reef fish swarms
  • Trevally & jacks
  • Frogfish
  • Nudibranchs
  • Macro critters
Month-by-month season rating for Mayne Rock
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Season follows Kota Belud: Boats run all year when the weather allows; February to July is the best stretch, and from October to December rough seas can cancel trips.

Know before you go

  • Strong currents, surge and a choppy surface can build over the submerged reefs off Kota Belud.

Dive videos

Mayne Rock · Bigfin Divers Borneo on YouTube

Sources

  1. Diving Kota Belud & Mantanani Island (Wayback) — Bigfin Divers
  2. Maine Rock dive site — Scubago

More dive sites in Kota Belud

Schooling barracuda in a sandy channel, cuttlefish in the boulders

8–26 mintermediate

Schools of young fish sheltering in black coral trees

5–25 mintermediate

Pinnacle

Bamboo and cat sharks asleep in the crevices of a pinnacle

14–25 mintermediate

A gentle drift north over table, brain and staghorn corals

7–25 mintermediate

Hairy frogfish hiding on the sand of a shallow shoal

5–18 mbeginner

Bobtail and pygmy squid on night dives around a tiny island

3–16 mbeginner

Pinkish purple soft coral with dorado and wahoo passing

18–40 madvanced

Giant groupers living under the scrap of three salvaged WW2 ships

26–40 madvanced

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