Dhigurah Arches
3.5400°N 72.9151°E · cave
Overview
Dhigurah Arches is a distinctive cave and arch site near Dhigurah Island in South Ari Atoll. Natural rock arches and caverns have formed in the reef structure here, creating a site with an unusual topography for the Maldives. Dhigurah Island is also famous as one of the best access points for whale shark encounters in South Ari Atoll — one of the world’s most reliable whale shark zones.
Diving
The arches themselves are the defining feature: natural passages formed by the reef that divers can swim through, with sunlight streaming in from open water on either side. The dimensions of the arches vary, and some sections require careful buoyancy management to navigate without disturbing the coral and sponge growth on the arch surfaces.
Outside the arch formations, the reef continues as a typical outer reef slope with corals, sea fans, and resident reef life. Whale shark sightings are a genuine possibility throughout a dive in this area, as the sharks frequent South Ari Atoll year-round, with peak numbers during the southwest monsoon.
Practical Notes
Arch and cave sections require good buoyancy control to avoid contact with the formations. Swimthroughs should be assessed individually for size and light availability before entry. The addition of potential whale shark encounters makes this a must-dive site in South Ari Atoll. Visibility typically 15–25 m.
Sea-surface temperature and wave height from Open-Meteo Marine (ERA5 reanalysis, monthly averages).
133 verified species observations (23 species) logged within ~11 km of this site between 1991 and 2022, from the Ocean Biodiversity Information System.
- Rhincodon typus · Whale Shark
- Carcharhinus melanopterus
- Phyllidiella rosans · ロザンイボウミウシ
- Phyllidia varicosa
- Berthellina citrina
- Phyllidia alyta
- Chelidonura varians
- Hypselodoris whitei
- Goniobranchus gleniei
- Caloria indica
- Tambja olivaria
- Verconia varians
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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