Secret Wall
11.3502°N 124.1159°E · wall
Secret Wall is a wall dive site in Philippines Malapascua, Asia.
Overview
Secret Wall is a steep vertical wall on the less-frequented western side of Malapascua, dropping from the shallows down past 30 meters into open water. The wall face is draped with sea fans and soft corals, and its remoteness means it sees less traffic than Gato Island, giving it an uncrowded, raw feel. Strong currents can sweep across the wall and push pelagics close to the edge, making careful drift technique and a late-dive safety stop in the blue essential.
Site Information
- Location: Philippines Malapascua, Asia
- Entry Type: Boat dive
- Site Type: Wall dive
- Difficulty Level: Advanced
- Maximum Depth: 30 meters
Marine Life
Secret Wall’s less-trafficked face is draped in sea fans and soft corals that shelter pygmy seahorses, crinoid-clinging shrimp, and nudibranchs for macro hunters working the wall. Strong currents push grey reef sharks, barracuda, and trevally close to the wall edge, creating pelagic encounters alongside the invertebrate-rich structure. Hawksbill turtles are occasionally seen resting in the sea fan garden during quieter current conditions.
Sources: Malapascua Thresher Shark Divers - Dive Sites, ZuBlu Thresher Sharks of Malapascua, Thresher Shark Divers Resort, Diving Squad Malapascua Guide, Divernet Malapascua Diving Guide. Last updated 2026-04-04.
Sea-surface temperature and wave height from Open-Meteo Marine (ERA5 reanalysis, monthly averages).
580 verified species observations (208 species) logged within ~11 km of this site between 1908 and 2025, from the Ocean Biodiversity Information System.
- Alopias pelagicus
- Sphenanthias
- Cetorhinus maximus
- Bathycongrus
- Clavelina moluccensis
- Goniobranchus reticulatus · チリメンウミウシ
- Nembrotha cristata · トサカリュウグウウミウシ
- Thuridilla lineolata · ソライロミドリガイ
- Hypselodoris variobranchia · カグヤヒメウミウシ
- Nembrotha mullineri
- Tambja morosa · ミドリリュウグウウミウシ
- Nembrotha milleri · ミラーリュウグウウミウシ
Scientific survey records skew toward sampled taxa (molluscs, corals) and do not reflect what you are guaranteed to see on a dive.
Source: OBIS (obis.org), aggregated Darwin Core occurrence records.
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