DiveTripPlanner
Sign in

Caverns and lava tunnels of Mauritius and Réunion

Roche Zozo (Mahébourg)

  • Max depth40 m
  • CertificationCavern
  • Water temperature≈ 22–28 °C, varies with the seasonestimated, no reports yet

The dive

The plateau's walls are cut by clefts, tunnels and deep caves where fish and corals shelter. If you extend the dive, you reach the entrance of a tunnel that leads to a canyon.

Profile and sections

The plateau's walls are cut by clefts, tunnels and deep caves where fish and corals shelter. If you extend the dive, you reach the entrance of a tunnel that leads to a canyon.

Le Figaro Nautisme wrote in 2015 that Mauritius's underwater geology is at its most dramatic on the south-east coast, with caves, canyons, tunnels and giant arches.

Practical: Scuba World Diving asks for at least Level 1 or Open Water for its dives.

Depth and profile
A rocky plateau rising from about 40 m to about 10 m; Le Figaro Nautisme gives 12–40 m, Scuba World Diving down to 40 m.
Configuration
Reef caves and a tunnel, guided: recreational gear with a torch (estimate).
Who can dive where
  • CaveAt least Cavern
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
  • Whole caveGoes down to 40 m (trimix or deco may be needed) · doesn't decide who may dive
Through a dive centre or guide

This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.

How to get there

By boat, outside the lagoon opposite Mahébourg in the south-east. Scuba World Diving (leaving from Preskil Island Resort, Pointe Jérôme) dives here.

Plan your route ↗

Around Roche Zozo (Mahébourg)

FillsNo fill station known nearby
Other sites2

Going to Mauritius and Réunion with your team?

Marcel finds the sites that match your team's certifications.

Plan a trip
Something wrong, or do you know more?Depth, access, parking, the current situation: let us know.
Sources, sharing and disclaimer

Share

Link to this page

Put this cave on your own site

Paste the code into an HTML block on your website. The block stays up to date by itself and sets no cookies.

Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from web research (Oct 2026): dive centres' site pages in SSI's dive guide (SeaUrchin Diving Center, Scubananas), dive.site, the activity pages of Plongée Salée and Scuba World Diving and the article on Réunion's best dive spots on manawa.com, the PADI blog on the top ten dive sites of Mauritius (updated Sep 2026), Le Figaro Nautisme (2015 and Nov 2025), the INPN's ZNIEFF sheets on Les grottes du Portail (2020), Mauritius's official tourism site, the ARS La Réunion list of hyperbaric chambers (Apr 2023), the Réunion marine reserve's leaflet and an e-mail from its management (GIP Réserve Naturelle Nationale Marine de La Réunion, Nov 2026) and a prefecture draft order on shark sightings. These are caverns, reef caves and basalt tunnels with daylight, all boat dives with a dive centre. No source gives coordinates. Certification and configurations are estimates.