
Réunion · France · Cave & cavern · Reef
Arche de Noël
A ten-metre arch cresting at 20 m, its feet on the bottom at 42 m
Area photo: Cynomana · CC BY-SA 4.0
Arche de Noël is the arch dive of the Pointe au Sel ground at Saint-Leu: a rock span about ten metres across, cresting 20 m below the surface and grounded on the bottom at 42 m. Divers pass under it and, further out, swim a tunnel 37 m long. A 40 m certification is the stated minimum and no part of the dive is shallow.
Where it is and how deep
21.2028° S, 55.2808° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
The descent brings you onto the top of the arch, which crests 20 m below the surface, and the span is around ten metres across with its feet on the bottom at 42 m. You can pass through it, which is the picture most divers come for, and the depth you choose to do that at sets the shape of the rest of the dive: the directory works the site as a 20 to 40 m profile and rates the surrounding relief, all peaks and plateaus, as the other half of the interest.
Continuing offshore there is a short piece of caving in a tunnel 37 m long, picked up by rising slightly as you go — small enough to feel like a swim-through and long enough to want a light. Spiny lobsters sit back in the rock, sponges grow on it, reef fish are varied over the structure and a turtle is on the site's list. From July to October it is worth paying attention on the boat as well: humpbacks and their calves pass off this coast.
Marine life and season
- Sea turtles
- Macro critters
- Whales
| 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.
Questions divers ask
What certification do you need for Arche de Noël?+
PE 40 is the stated minimum. The top of the arch is at 20 m, its feet are on the bottom at 42 m, and the directory works the site as a 20 to 40 m dive.
Sources
- Arche de Noël — Carte de La Réunion
More dive sites in Réunion
A stepped wall dropping in two stages from 40 m to 70 m
Artificial reef
A small barge on black sand, thick with fish
Wreck
A 1999 scuttling on her port side, holds full of soldierfish
Advanced-only drop-off on the Saint-Leu coast
Reef
Shallow plateau with dense fish and varied coral
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
Similar dives elsewhere
A cavern that surfaces in a chamber open to the sky
Cave & cavern
Cathedral
Ifaty & Mangily · Madagascar
Tunnels, swim-throughs and arches in the middle of the North pass
A canyon that passes right under the barrier reef
A cavern about 10 m high running from 15 to 30 m


