School of giant trevally off Christmas Island

Photo: ChrisBrayPhotography, cropped, CC BY-SA 4.0, via Wikimedia Commons

Marsha Wall

Alas Strait, Sumbawa, Indonesia

  • Advanced
  • Very strong current
  • Best Nov to Apr

Marsha Wall is an advanced dive site in Alas Strait, Sumbawa, Indonesia. Dives reach 40 m, in very strong current. The best months are November to April. Marine life here includes barracuda, tuna and bamboo shark. One dive shop on Scubalo runs trips here.

Updated

Conditions at Marsha Wall

Max depth
40 m
Depth range
0–40 m
Current
Very strong
Level
Advanced
Depth profile: dives from 0 m to 40 m.

Safety

Current
Strong, with a negative entry; stay close to your buddy and guide.
Depth
The plateau at 32 metres drops to 100 metres.
Eddy
A back eddy at the end can hold you; follow the guide's exit.

About Marsha Wall

Marsha Wall is a strong-current drift on the Sumbawa side of the Alas Strait, dived from Lombok, with a negative entry, giant trevally, dogtooth tuna, barracuda and reef sharks.

Marsha Wall lies on the Sumbawa side of the Alas Strait: a 50-minute drive from Kuta Lombok to Telong Elong, then a 45-minute speedboat crossing. Divers make a quick, negative entry into the current that splits around the island, which takes them to the wall. At about 32 metres a plateau drops away to 100 metres.

Large boulders on the wall give divers something to hold in the current while schools of amberjack, giant trevally, skipjack tuna and barracuda pass, with dogtooth tuna, Spanish mackerel and reef sharks among them. The drift runs for about 300 metres at an average depth of 25 metres before the wall ends in a gently sloping plateau, where bamboo sharks rest.

When to dive Marsha Wall

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 Wall

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

Type of diving

Questions about Marsha Wall

Where is Marsha Wall?

On the Sumbawa side of the Alas Strait, about 45 minutes by speedboat from Telong Elong in southeast Lombok.

When can you dive Marsha Wall?

November to April, when the seas are calm enough to cross the Alas Strait. Trips are confirmed a few days ahead, depending on the forecast.

What can you see at Marsha Wall?

Schools of amberjack, giant trevally, skipjack tuna and barracuda, with dogtooth tuna, Spanish mackerel, reef sharks and resting bamboo sharks.

How hard is Marsha Wall?

It is a strong-current drift with a negative entry, for experienced divers.

Which dive shops go to Marsha Wall?

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 Wall

One shop in the directory runs trips here.

See the shop