Located off the West Coast of Mauritius, Three Anchors is a dive site steeped in maritime history and natural beauty. The site gets its evocative name from three large anchors — believed to date back to the era of sailing ships that once navigated these waters along ancient trade routes. Resting on a sandy seabed surrounded by coral formations, these anchors have become artificial reef structures, now encrusted with colourful corals and sponges. The site is accessible from popular launch points along the West Coast, including areas near Flic en Flac and La Preneuse, making it convenient for divers staying in this vibrant part of the island.
The West Coast of Mauritius is renowned for its calm, sheltered lagoon waters, protected by the outer barrier reef that runs parallel to the shoreline. This natural protection means that Three Anchors can often be dived year-round, though conditions are generally most favourable during the southern hemisphere's dry season. The site appeals to a wide range of divers, from novices exploring their first reef dives to experienced underwater photographers seeking that perfect composition around the storied anchors.
The diversity of marine life at Three Anchors is one of its greatest draws. The anchors themselves have become thriving micro-ecosystems, draped in encrusting corals, sea fans, and sponges in shades of orange, purple, and yellow. Around these structures, expect to encounter:
The site also supports healthy populations of invertebrates including nudibranchs, sea stars, and feather duster worms, making it a paradise for macro enthusiasts and underwater photographers.
Three Anchors benefits from the sheltered nature of Mauritius's West Coast lagoon. Currents are generally mild to moderate, making navigation comfortable for most divers. Visibility typically ranges from 15 to 25 metres, though this can vary seasonally and after periods of rain or strong wind. The West Coast's calm surface conditions mean boat entry and exit are usually straightforward.
Water temperatures average between 24°C and 29°C throughout the year, with the warmest water occurring from December through April during the austral summer. A 3mm wetsuit is recommended year-round, while a 5mm suit may be more comfortable during the cooler winter months of June to August.
While Three Anchors can be enjoyed throughout the year, the optimal diving season on Mauritius's West Coast runs from May to November. During this period, the southeast trade winds keep the East Coast rougher, but the West Coast enjoys calmer sea states and excellent visibility. July and August offer particularly crisp, clear water, though temperatures drop slightly. The summer months (December to March) coincide with cyclone season, which can temporarily reduce visibility but also bring warmer water and the possibility of encountering whale sharks and other pelagic visitors in nearby waters.