Aquarium East

Overview

Aquarium East is a beloved reef dive site located off the east coast of Mauritius, positioned within the protected lagoon system that characterises this side of the island. The site takes its name from the incredible density and variety of marine life found here — a truly aquarium-like experience where fish seem almost tame in their proximity to divers. The reef structure combines hard and soft corals, sandy channels and rocky outcrops, creating a layered environment that rewards exploration at every turn.

The site is particularly popular with beginner and intermediate divers, as the relatively shallow depths and calm conditions make it forgiving and accessible. Dive centres based in towns such as Belle Mare, Trou d'Eau Douce and Mahébourg regularly feature Aquarium East on their itineraries, and it is widely considered one of the east coast's signature dives.

Marine Life

True to its name, Aquarium East is home to an extraordinary cast of tropical reef species. Divers can expect to encounter a vibrant community of fish and invertebrates throughout the dive:

• Butterflyfish and angelfish – Among the most colourful residents, these species are seen in impressive numbers hovering around coral heads.
• Parrotfish – Often seen grazing on coral, their crunching sounds and vivid hues are a highlight of any dive here.
• Moray eels – Several species of moray eel inhabit the crevices of the reef, peering out with characteristic curiosity.
• Surgeonfish and triggerfish – Schools of these mid-water species cruise through the reef, adding movement and colour to the scene.
• Sea turtles – The east coast is a known corridor for green and hawksbill turtles, and sightings at Aquarium East are not uncommon.
• Lionfish and scorpionfish – Masterfully camouflaged, these ambush predators wait patiently among the corals and should be admired from a safe distance.
• Octopus and nudibranchs – Patient observers are often rewarded with sightings of these fascinating invertebrates tucked into the reef.

The coral coverage at Aquarium East is generally healthy, with brain corals, staghorn formations and table corals providing the architectural backbone of this thriving ecosystem.

Dive Conditions

The east coast of Mauritius benefits from the protection of the outer barrier reef, which breaks the swell and keeps lagoon conditions relatively calm for much of the year. Aquarium East sits within this sheltered zone, making it suitable for divers who prefer gentler conditions. Visibility is generally good, ranging from 15 to 25 metres on clear days, though this can be affected by seasonal winds and surface conditions.

Currents at the site are typically mild, making it comfortable for beginners and those who prefer a relaxed, exploratory pace. Water temperatures hover between 24°C and 29°C depending on the season, with the warmest water occurring during the austral summer months of November through April.

Best Season to Dive

Aquarium East can be dived year-round, but the optimal period is generally from October to April when the Indian Ocean is at its warmest and the trade winds ease off. During the austral winter months of May to September, the south-east trade winds pick up on the east coast, which can occasionally affect surface conditions and visibility. However, this is also the time when the water is clearest and cooler, offering excellent visibility for underwater photography.

Sunrise and morning dives are particularly recommended during summer months, when the light penetrates the water beautifully and marine activity is at its peak.

Tips for Diving Aquarium East

• Book through a reputable east coast dive centre for guided dives, as local knowledge of the site dramatically enhances the experience.
• Bring an underwater camera — the density of marine life here makes it one of the best sites in Mauritius for reef photography.
• Practice good buoyancy control to protect the coral formations, many of which are fragile and slow-growing.
• Wear a thin 3mm wetsuit or lycee suit year-round; a 5mm suit is advisable during the cooler winter months.
• Arrive early in the morning for the best light conditions and calmer surface weather.
• Check local weather and wind forecasts before heading out, particularly during the trade wind season.