Long Cliff is one of the east coast of Mauritius's most rewarding reef dives, situated within the protected lagoon system that stretches between Mahébourg and Blue Bay. The site is characterised by an extended coral cliff face that drops from a shallow reef plateau at around 10–12 metres down to a sandy seabed at roughly 25–30 metres. This gradient means divers of varying experience levels can enjoy the site comfortably, with beginners exploring the plateau and more experienced divers venturing along the deeper sections of the wall. The east coast of Mauritius benefits from relatively sheltered conditions compared to the windward south, making Long Cliff accessible for much of the year.
The coral formations at Long Cliff are among the healthiest on the east coast, supporting a dense and diverse community of marine life. The shallow reef plateau is carpeted with hard corals including table corals, branching staghorns and massive brain corals, providing refuge for clouds of glassfish, damselfish and chromis. As you descend along the cliff face, gorgonian sea fans emerge from crevices, and large sea sponges in brilliant orange and purple hues cling to the vertical rock.
The site also rewards macro enthusiasts — nudibranchs, cleaner shrimps and ornate ghost pipefish can be found along the reef base and in sheltered nooks of the wall.
Long Cliff is generally considered a moderate dive site, accessible to Open Water certified divers under calm conditions and ideally suited to Advanced divers who wish to explore the deeper cliff sections. Visibility typically ranges from 15 to 25 metres, though it can drop during periods of rough weather or after heavy rainfall. Currents are usually mild to moderate along the cliff face and can help divers drift effortlessly along the wall, creating a relaxed drift-dive atmosphere. Occasionally stronger surges may occur on the outer reef sections, so divers should follow their guide's briefing carefully. Water temperatures on the east coast range from approximately 23°C in austral winter (July–September) to 28°C at the height of summer (January–March), making a 3mm wetsuit comfortable for most of the year.
The east coast of Mauritius is sheltered from the dominant trade winds for much of the year, making Long Cliff diveable in most months. The dry season from May through November generally offers the clearest visibility and calmest surface conditions. October through December is often considered the sweet spot — water temperatures begin to rise, pelagic activity increases and visibility remains excellent. The summer months from December through March bring warmer water and vibrant reef activity, though occasional cyclone-associated swells can temporarily close the site. January and February require flexibility as weather windows can shift quickly.