Nudibranch on a dark sandy seafloor, typical of Lembeh Strait muck-diving sites

Nudi Falls

Lembeh, North Sulawesi, Indonesia

Beginner
No current

Nudi Falls is a beginner dive site in Lembeh, North Sulawesi, Indonesia. Dives reach 25 m, with little or no current. Marine life here includes nudibranch, seahorse and pygmy seahorse. 3 dive shops on Scubalo run trips here.

Updated 17 October 2026

Conditions at Nudi Falls

Max depth: 25 m
Depth range: 0–25 m
Current: None
Level: Beginner

Depth profile

About Nudi Falls

Nudi Falls is a Lembeh Strait dive on the mainland side, just north of the village of Tandu Rusa, combining a shallow mini wall with a rubble slope. It is known for nudibranchs, pygmy seahorses and soft corals, down to about 25 metres.

The name comes from a guides' story: exhaled bubbles knock nudibranchs off the wall above, and they drift down past the divers below. It fits one of the best nudibranch sites in a strait already known for them.

In the late morning, sunlight filters through overhanging trees onto the mini wall. Below it a sandy slope and a rubble patch give way to a soft coral field from about 20 metres down to 25. Alongside the nudibranchs, divers regularly find pygmy seahorses, frogfish, flamboyant cuttlefish, blue ringed and wonderpus octopus, and garden eels.

The site sits in an exposed part of the strait, so currents pick up at times. It is also counted among the best night dives in Lembeh.

When to dive Nudi Falls

Season

Year round: The Lembeh Strait is dived all year.
Calmest months: March to October.

Marine life at Nudi Falls

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

Type of diving

Location

Questions about Nudi Falls

What is Nudi Falls known for?

Nudi Falls is one of the most popular sites in the Lembeh Strait for nudibranchs, alongside pygmy seahorses, frogfish and flamboyant cuttlefish. It pairs a shallow mini wall with a rubble slope and a soft coral field.

How deep is Nudi Falls?

The dive runs from the shallow mini wall down to a maximum of about 25 metres, with a soft coral field from around 20 metres.

Why is it called Nudi Falls?

Guides say exhaled bubbles knock nudibranchs off the wall above, so they drift down past divers below. The story stuck to one of Lembeh's richest nudibranch sites.

Is Nudi Falls good for night diving?

Yes. Nudi Falls is counted among the best night dives in the Lembeh Strait, for its nudibranchs and other small animals that come out after dark.

When is the best time to dive Nudi Falls?

Nudi Falls is dived all year. March to October generally brings the calmest conditions in the Lembeh Strait. Its exposed position means currents pick up at times.