Hard corals and a diver on a reef at Bunaken, North Sulawesi

Photo: Christian Gloor, cropped, CC BY 2.0, via Wikimedia Commons

Marsha Reef

Alas Strait, Sumbawa, Indonesia

  • Advanced
  • Best Nov to Apr

Marsha Reef is an advanced dive site in Alas Strait, Sumbawa, Indonesia. Dives run from 3 to 40 m. The best months are November to April. Marine life here includes tuna. One dive shop on Scubalo runs trips here.

Updated

Conditions at Marsha Reef

Max depth
40 m
Depth range
3–40 m
Level
Advanced
Depth profile: dives from 3 m to 40 m.

Safety

Tide
The lee-side plateau is calmest on a rising tide.

About Marsha Reef

Marsha Reef is an island reef on the Sumbawa side of the Alas Strait, dived from Lombok, with a coral plateau on its lee side and steep walls on the current line.

Marsha Reef spreads out from Marsha Wall on the same island, on the Sumbawa side of the Alas Strait, reached by speedboat from Telong Elong in southeast Lombok. On a rising tide the lee side offers a plateau of hard and soft coral, sheltered from the current.

Closer to the island's edge, toward the current line, the reef turns into steep walls. Skipjack tuna and mackerel pass here, and a blue marlin has been seen here. Above the water, sea eagles soar over the forested island.

When to dive Marsha Reef

Best months: January, February, March, April, November, December.

Season

Right now
Best months
November to April, when the Alas Strait is calm enough for the crossing.
Good to know
Trips are confirmed a few days ahead, depending on the weather forecast.

Marine life at Marsha Reef

What divers report seeing here. Tap one to see where else it turns up.

Type of diving

Questions about Marsha Reef

Where is Marsha Reef?

Beside Marsha Wall on the Sumbawa side of the Alas Strait, reached by speedboat from Telong Elong in southeast Lombok.

When can you dive Marsha Reef?

November to April, when the seas are calm enough to cross the Alas Strait.

How deep is Marsha Reef?

From about 3 to 40 metres, around 16 metres on average.

What can you see at Marsha Reef?

Hard and soft coral on the plateau, skipjack tuna and mackerel, and a blue marlin has been seen.

Which dive shops go to Marsha Reef?

Dive shops in Kuta Lombok cross the Alas Strait by speedboat from Telong Elong. The shops that go there are listed on this page.

Reviews

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Dived here? Tell other divers what it was like: the visibility, the current and what you saw.

Dive shops that go to Marsha Reef

One shop in the directory runs trips here.

See the shop