Reefwander
An elevated view of Rodrigues's turquoise lagoon and the pale barrier reef line running along the coast.

Rodrigues · Mauritius · Pinnacle

Le Sec des Tortues

An offshore coral seamount with turtles in the tunnels

Area photo: Ludovic Lubeigt from Taiwan · CC BY-SA 2.0

One of the coral seamounts that rise off the continental shelf in the far south of the island, dived to 31 m. The rock is cut with caves and tunnels, and the green and loggerhead turtles that use them are what the site is named for. Batfish, grey sweetlips and outsized parrotfish work the flanks, and the French guide rates it for Niveau II to IV divers.

Also known as Sec des Tortues.

Where it is and how deep

Depth profile of Le Sec des Tortues: typical dive to 31 m (to 102 ft) 18 m · Open Water30 m · Advanced40 m · Recreational limit31 mtypical dive
Depths on a shared scale to 40 m (130 ft); dashed lines mark common certification limits.

19.7600° S, 63.4600° EApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.

The dive

The site is one of the several hauts-fonds — coral heads standing up off the continental shelf — scattered through the open water in the far south of Rodrigues. The dive reaches 31 m on the seamount itself, and the French guide that covers it rates the site for divers from Niveau II to IV, which puts it at the deeper end of what is dived here.

The structure is cut with caves and tunnels, and the turtles are the reason for the name: green turtles and loggerheads both use the shelter. Batfish hang off the flanks, tropical grey sweetlips shoal along the rock, and there are enormous parrotfish over the coral. Small sharks are listed as a possibility here rather than a fixture.

Marine life and season

  • Sea turtles
  • Reef sharks
Month-by-month season rating for Le Sec des Tortues
JanFebMarAprMayJunJulAugSepOctNovDec
FairFairGoodGoodPrimePrimePrimeGoodGoodPrimePrimeFair

Season follows Rodrigues: May–Jul and Oct–Nov are the calmest windows; Jan–Mar brings cyclone risk and August can be windy.

Sources

  1. Les sites de plongée de Rodrigues — Spots d'Évasion

In The Logbook

More dive sites in Rodrigues

Named after a grouper that changes colour on the spot

to 19 mintermediate

Pelagic & blue water

A blue descent with no reference onto a shelf at 25 m

to 25 madvanced

A natural aquarium at 10 m, or a 50-minute tidal drift

10–20 mintermediate

Coral totems and valleys between two reef blocks

to 28 madvanced

Coral drop-offs at 21 m under a ceiling of fusiliers

to 21 mintermediate

Coral garden

A sheltered lagoon pool at 7 m for first dives

7–12 mbeginner

Cave & cavern

Chimneys through the barrier reef that flood with daylight

to 25 madvanced

Similar dives elsewhere

Pinnacle

Ave Maria

Praslin & La Digue · Seychelles

Granite canyons in the channel between Praslin and La Digue

5–25 mintermediate

Pinnacle

Booby Island

Praslin & La Digue · Seychelles

Big granite passages, 20 minutes out from Praslin

10–30 madvanced

Pinnacle

Dharavandhoo Thila

Baa Atoll & Hanifaru Bay · Maldives

Turtles and whitetips resting under a quiet 10 m pinnacle

10–30 mintermediate

Pinnacle

Hanimaadhoo Thila

Haa Alif & Haa Dhaalu Atolls · Maldives

Open-water descent to 30 m, then circle the thila upward

14–30 madvanced