Trou Ramsamy

Overview of Trou Ramsamy

Trou Ramsamy is a reef dive site located along the west coast of Mauritius, benefiting from the natural shelter provided by the island's lagoon system. The site takes its name from local fishing and maritime heritage and has long been a favourite among dive operators based in the west coast region. The reef here forms a series of coral ridges, sandy channels, and small overhangs that create a diverse underwater topography perfect for leisurely exploration. Depths are generally accessible to beginners while still offering enough complexity to satisfy experienced divers seeking close-up encounters with marine life.

Marine Life at Trou Ramsamy

The reef at Trou Ramsamy supports a thriving ecosystem year-round. The coral structures attract a wide variety of species that rely on the reef for shelter, feeding, and breeding. Divers can expect to encounter:

• Reef fish: Parrotfish, angelfish, butterflyfish, and sergeant majors are commonly seen weaving between coral heads throughout the dive.
• Moray eels: Both honeycomb and giant moray eels are frequently spotted tucked into crevices along the reef walls.
• Octopus and cuttlefish: These masters of camouflage appear regularly, especially during early morning dives when they are most active.
• Sea turtles: The west coast of Mauritius is known for hawksbill and green turtle sightings, and Trou Ramsamy is no exception.
• Lionfish and scorpionfish: Cryptic species rest among the coral, rewarding attentive divers who take time to search the reef carefully.
• Pelagic visitors: Depending on the season, barracuda and trevally patrol the outer edges of the reef in impressive schools.

The sandy patches between coral ridges are equally productive, often hiding flounder, stingrays, and garden eels that retreat into the sediment at the approach of divers.

Dive Conditions

Trou Ramsamy benefits from the protective influence of the Mauritius barrier reef and the naturally calm waters of the west coast lagoon. Currents are generally mild, making it suitable for divers of various experience levels. Visibility typically ranges from 15 to 25 metres depending on weather patterns and tidal movement. The site is most comfortable when dived during the morning, before afternoon winds begin to stir surface chop. Water temperatures on the west coast range from approximately 23°C in the cooler austral winter months (June to September) to around 28–29°C during the warm summer season (November to April).

Best Season to Dive Trou Ramsamy

Mauritius offers year-round diving, but the west coast is particularly favoured during the austral summer from November through April, when the trade winds shift and calm conditions prevail on this side of the island. The warmer water during summer months also brings increased marine activity including spawning events that attract larger predators. The winter months of June to September still offer excellent diving with slightly cooler, clearer water and reduced surface chop in the mornings. Cyclone season (January to March) can occasionally affect conditions, so divers should check weather forecasts during this period.

Tips for Diving Trou Ramsamy

• Go early: Morning dives offer the calmest surface conditions and the most active marine life, particularly for turtle and octopus sightings.
• Choose a local operator: West coast dive centres know the site intimately and can guide you to the most productive sections of reef and maximise your underwater time.
• Buoyancy control: The coral is fragile and thriving. Excellent buoyancy will help protect the reef and improve your ability to observe shy species like scorpionfish and moray eels.
• Bring a torch: A small dive light helps illuminate crevices where eels, shrimps, and nudibranchs shelter during daylight hours.
• Wetsuit thickness: A 3mm full wetsuit is ideal for summer dives; consider a 5mm suit for winter months when water temperatures drop towards 23°C.
• Check currents: While generally mild, tidal influence can occasionally create noticeable drift on the outer reef edges — always dive with a surface marker buoy (SMB).