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Trou aux biches · Mauritius · Indian Ocean

Max. depth · 30 m

Coin de Mire - The Walls, Mauritius: South-West Wall Dive

Descend the vibrant south-west wall of Coin de Mire, navigating schools of fusiliers and encountering barracudas patrolling the deeper sections.

What makes this site special

  • Explore a vibrant wall on the south-west side of Coin de Mire.
  • Encounter massive schools of fusiliers.
  • Observe large parrotfish grazing on the reef.
  • Spot barracudas patrolling the deeper sections.
  • Frequent sightings of dogtooth tuna.
  • Discover a hidden cave for Level 2 certified divers.
  • Popular site for underwater photographers.

Coin de mire- The Walls about the site

Dropping into Coin de Mire - The Walls, you immediately feel the embrace of the ocean on the southern side of the island. The dive path initially takes you along the south aspect, moving from west to east, tracing the contours of the island until you reach the distinctive formations known as The Walls. This initial traverse allows you to appreciate the sheer scale of the underwater topography before the main event.

As you follow the wall, the topography unfolds, revealing dramatic drops and overhangs that are prime real estate for schooling fish. The deeper sections, extending down to 30 metres, are where you might encounter the larger, more elusive residents. Keep an eye out into the blue where barracudas (Sphyraena barracuda) patrol with purpose, their sleek forms a constant reminder of the ocean's efficient predators.

The sheer quantity of fusiliers (Caesionidae) at The Walls is a defining feature of the dive, often forming shimmering clouds that can momentarily obscure your view of the deeper wall. These vibrant schools create a dynamic, ever-changing backdrop, and their presence attracts opportunistic hunters. Amidst this flurry of activity, massive parrotfish (Scaridae) can be observed, methodically grazing on the reef, their powerful jaws leaving tell-tale scrape marks on the coral.

Beyond the bustling schools, the site presents opportunities for encounters with pelagic species that venture closer to the wall. Dogtooth tuna (Gymnosarda unicolor), with their streamlined bodies and impressive speed, are not uncommon here, adding an element of excitement and anticipation to the deeper parts of your dive. These apex predators are a testament to the rich food chain supported by Coin de Mire's vibrant reef ecosystem.

For those with the appropriate certification and a calm sea, a unique feature of this site awaits: a beautiful cave situated no deeper than 6 metres. This subterranean passage extends for 30 metres or more beneath the island itself. Exploring its depths with a torch, you can discover a different kind of underwater environment, a sheltered world away from the open wall, offering refuge to various reef inhabitants.

The inherent beauty and diversity of Coin de Mire - The Walls make it a favoured spot for underwater photographers. The interplay of light on the schooling fusiliers, the vibrant colours of the parrotfish, and the dramatic backdrop of the wall itself provide endless opportunities for capturing the magic of the underwater world. The chance to encounter larger pelagics further enhances its appeal for those looking to document their dives.

Diving Coin de mire- The Walls: the marine life you’ll meet

Diving conditions

This site is accessible for all levels of certified divers, with depths ranging from a minimum of 9 metres to a maximum of 30 metres. However, to explore the cave section, a minimum of Level 2 certification is required, and divers must be equipped with a torch for safe navigation within the confined space.

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