Nudi Falls (Lembeh Strait)
Bunaken · Indonesia
Mainland side mark in the middle of the Lembeh Strait, just north of Tandu Rusa village. The dive starts shallow on a soft coral encrusted wall that drops to about 15 m, then transitions to a rubble and sand slope feeding a broad field of large soft corals from 20 m down. The site earned its name because divers' exhaust bubbles dislodge nudibranchs from the wall above, sending tiny slugs raining down through the water column. It is also the most reliable spot in the strait for the Lembeh seadragon, Pontoh's pygmy seahorse, harlequin shrimp, rhinopias scorpionfish, wonderpus and blue ringed octopus, and ornate ghost pipefish. Currents are typically calm.
Conditions
Depth
5 to 25 m
Open water and up
Current
Usually gentle
Can pick up on the edge
Visibility
8 to 15 m
Clearest in the calm season
Water
25 to 29°C
Tropical 5 mm wetsuit recommended
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 28 | 28 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 28 |
| Vis (m) | 5 | 5 | 8 | 10 | 10 | 10 | 8 | 8 | 10 | 12 | 12 | 8 |
| Current | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle |
Your chances of seeing each animal
Lembeh seadragon
Last confirmed May 15, 2026 · 130 records
Almost always
Nearly every dive
Ornate ghost pipefish
Last confirmed Jul 7, 2026 · 82 records
Almost always
Nearly every dive
Flamboyant cuttlefish
Last confirmed Jun 23, 2026 · 70 records
Almost always
Nearly every dive
Harlequin shrimp
Last confirmed Jun 22, 2026 · 29 records
Very likely
Most dives
Pontoh's pygmy seahorse
Last confirmed May 6, 2026 · 9 records
Very likely
Most dives
Wonderpus octopus
Last confirmed May 8, 2026 · 34 records
Likely
About 6 in 10 dives
Rhinopias scorpionfish
Last confirmed May 6, 2026 · 12 records
Likely
About 6 in 10 dives
Blue ringed octopus
Last confirmed May 5, 2026 · 3 records
Rare
Now and then
Gear