Ngemelis Wall
Dive site
Ngemelis Wall — sometimes called Big Drop-Off — is a sheer limestone cliff on the western edge of Ngemelis Island that many divers rank alongside Blue Corner as the finest wall dive in Palau. The wall begins at just 3 meters and drops vertically beyond 300 meters into the Philippine Sea trench, its face encrusted with table corals, giant sea fans, and dense purple and orange soft coral colonies. Visibility routinely exceeds 40 meters and the wall attracts Napoleon wrasse, bumphead parrotfish, turtles, and pelagic species including occasional oceanic whitetip sharks drifting in from open water. The absence of strong current makes this a controlled, immersive experience in contrast to the adrenaline drift dives nearby.
Conditions
Depth
3 to 40 m
Advanced depths
Current
Usually gentle
Can pick up on the edge
Visibility
25 to 40 m
Clearest in the calm season
Water
27 to 30°C
3mm wetsuit
Month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water (°C) | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 |
| Vis (m) | 25 | 28 | 28 | 28 | 25 | 25 | 22 | 22 | 22 | 22 | 25 | 25 |
| Current | Gentle | calm | calm | calm | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle | Gentle |
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