
Réunion · France · Pinnacle · Cave & cavern · Reef
Demhotel
Two basalt organ pipes 25 m tall, one pierced by a cave
Area photo: Cynomana · CC BY-SA 4.0
Demhotel is a geology dive south of Saint-Pierre, built around two basalt organ-pipe columns standing 25 m tall, one of them pierced by a cave. Large ridges separated by a plateau lead out to them. The site runs from 6 m down to 40 m, so how much of it you see depends on the profile the guide sets rather than the terrain.
Where it is and how deep
21.3722° S, 55.5569° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
The ground is large basalt ridges separated by a plateau, and it climbs and falls enough that the site can be dived anywhere between 6 and 40 m. Following the ridges out is the natural route, and the plateau between them gives somewhere to work at a fixed depth — which is what a level 1 minimum on ground that reaches 40 m calls for.
The set pieces are two basalt organ pipes standing 25 m tall, imposing enough that the directory rates them worth the trip on their own, and one of the two is pierced by a cave you can pass into. Around them the coral fish are varied, black jacks come through and leopard rays pass over the ground; the directory also picks out big sponges, anemones and the corals growing on the rock.
Marine life and season
- Stingrays
- Trevally & jacks
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Fair | Fair | Good | Good | Prime | Prime | Prime | Prime | Prime | Prime | Good | Fair |
Season follows Réunion: May–Oct is the dry season with the calmest water and humpbacks Jul–Oct; Jan–Mar is cyclone season.
Sources
- Demhotel — Carte de La Réunion
More dive sites in Réunion
A coral plateau at 14 m above two drop-offs and a sand pass
Wall
A cliff that begins at 37 m and falls to 60 m in the blue
Cave & cavern
A collapsed reef cavern with easy galleries at 3 to 17 m
A coral flat to 20 m, then a wall from 20 down to 40 m
Reef
Raw lava flows skinned in white and blue soft coral
Cave & cavern
Three arches left standing from a collapsed lava tunnel
An open-water-friendly pass with turtles and eagle rays
Wreck
Depth figures for this scuttled lobster boat disagree by 34 metres
Similar dives elsewhere
A pinnacle eroded into five separate pieces, 12 m to 40 m
Three soft-coral pinnacles that work as a cleaning station
A 400 m ridge from an 8 m top down to about 35 m
Black-footed and Clark's clownfish in the thila's anemones




