Great White Wall — Great White Wall

Planning a trip?

Hotels, dive operators, gear, and how to get here are on the Great White Wall location page.

Overview

Wall in the Somosomo Strait completely sheeted in white soft coral that blooms when the tidal current runs. Entry is through a swim-through tunnel onto the vertical face. The current must be running for the corals to open — timing is everything.

Briefing note

Timed to a specific tidal window — operators choose the day, not the diver.

What you'll see

4 species curated

White soft coral (Dendronephthya)
year-round
Anthias
year-round
Reef shark
seasonal
Schooling jacks
year-round

Sightings evidence

1 record on file

White soft coral (Dendronephthya)
high confidence
Last confirmed
May 2026
Recent records
130 within 10 km

Sources & methodology

How we summarise this

We aggregate confirmed occurrence records from GBIF and OBIS within a fixed radius of each dive site. Occurrence records confirm presence and reveal seasonality clustering, but they DO NOT measure per-dive probability — there is no eligible-effort denominator. We deliberately do not publish a numeric '% chance of sighting' from this data.

Sources

Global Biodiversity Information Facility — GBIF Secretariat
Ocean Biodiversity Information System — IOC-UNESCO
OBIS-SEAMAP — Duke University Marine Geospatial Ecology Lab / OBIS
iNaturalist — California Academy of Sciences & National Geographic Society
IUCN Red List of Threatened Species — International Union for Conservation of Nature
WoRMS — World Register of Marine Species — Flanders Marine Institute (VLIZ)
FishBase — FishBase Consortium
Atlas of Living Australia — CSIRO / GBIF Australia
REEF Volunteer Fish Survey — Reef Environmental Education Foundation

Conditions

Month	Water	Visibility	Current
Jan	28–29 °C	20–30 m	strong
Feb	28–29 °C	20–30 m	strong
Mar	28–29 °C	20–30 m	strong
Apr	27–29 °C	25–40 m	strong
May	26–28 °C	25–40 m	strong
Jun	25–27 °C	25–40 m	strong
Jul	25–27 °C	25–40 m	strong
Aug	25–27 °C	25–40 m	strong
Sep	25–27 °C	25–40 m	strong
Oct	26–28 °C	25–40 m	strong
Nov	27–29 °C	20–30 m	strong
Dec	28–29 °C	20–30 m	strong

Season calendar

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Peak season highlighted · current month outlined

Gear for this site

Beyond the basic kit

Reef hook — Once on the wall, hook in and watch the corals open.
SMB — Drift exits over deep blue water.

Next step

Book your trip to Great White Wall

Hotels, liveaboards, dive operators, gear recommendations, and travel logistics for the whole region.

Plan your trip →

Some links earn us a commission. Learn more