Located in the northern waters of Mauritius, Moors Arch is a celebrated dive site renowned for its impressive natural archway that cuts through a coral-encrusted reef. The site derives its name from the Moorish-style curved formation that divers can swim through, an experience that feels both architectural and utterly wild. Sitting at depths suitable for intermediate and advanced divers, the arch provides a dramatic focal point around which an entire ecosystem has evolved. The surrounding reef plateau extends across a wide area, offering exploratory dives beyond the arch itself into canyons, overhangs, and sandy channels.
The site is accessible from several dive centres operating out of Grand Baie, Cap Malheureux, and Anse la Raie. Boat trips typically take between 15 and 30 minutes depending on the departure point, making it a convenient choice for a morning or afternoon dive. The visibility here is generally excellent, regularly exceeding 20 metres on calm days, which allows divers to fully appreciate the scale and beauty of the arch from a distance before approaching.
The rich coral growth at Moors Arch supports an exceptional diversity of marine life. The arch itself is encrusted with hard and soft corals, sea fans, and sponges in vivid hues of orange, purple, and yellow. As you approach the archway, you are likely to be greeted by dense schools of glassfish and fusiliers that hover in the water column, creating a shimmering curtain of silver.
During the warmer months from November to April, whale sharks and manta rays have been reported in the broader northern waters, and lucky divers occasionally encounter these pelagic giants during their approach to the site.
Moors Arch is generally considered an intermediate-level dive site, though beginners accompanied by an instructor can enjoy the shallower sections of the reef. The arch itself sits at depths of approximately 15 to 22 metres, with the surrounding reef plateau beginning around 10 metres. The site can be influenced by the Indian Ocean's seasonal swells and currents, so checking conditions with your dive operator before heading out is always advisable.
Currents at Moors Arch are typically mild to moderate, but can strengthen during tidal changes, which can actually enhance the experience by bringing in nutrients and attracting larger pelagic species. Water temperatures range from around 24°C in the cooler austral winter months to 29°C during summer. A 3mm wetsuit is adequate for most of the year, though a 5mm suit adds comfort during July and August.
Mauritius enjoys year-round diving, but the absolute best conditions at Moors Arch are experienced from October through to May. During these months, the southeast trade winds that characterise the Mauritian winter have eased, sea surfaces are calmer, and underwater visibility is at its peak. The summer wet season from December to March brings warmer waters and higher chances of encountering whale sharks. The cooler and windier months of June to August can still offer rewarding dives, particularly for those interested in schooling fish and shark activity.