Tunnel Wall

Tunnels and swim-throughs

The defining feature of this site is its network of tunnels and natural arches eroded into the wall face. Some passages are brief swim-throughs requiring just a few kicks, while others wind deeper into the reef before emerging at different points along the wall.

Light filtering through from openings creates dramatic photography opportunities, particularly when silhouetting divers against the blue water beyond. The tunnels vary in size, with some accommodating single-file passage and others large enough for groups to explore together.

The wall experience

Below the tunnel zone, the wall plunges into the Tongue of the Ocean, one of the deepest ocean trenches in the Bahamas. Recreational divers typically explore to 100 feet or so, where the wall's coral coverage transitions from dense reef to more sparse but still impressive formations.

The sensation of swimming along a vertical cliff face with nothing but blue water beneath is exhilarating. Hard and soft corals, sea fans, and sponges cover the wall, while the open water beyond occasionally produces sightings of reef sharks, eagle rays, or sea turtles.

Marine life

Tunnel Wall supports the diverse reef community typical of Nassau's wall sites. Groupers, snappers, barracuda, and sergeant majors are common along the wall face, while smaller creatures hide in the coral recesses. The tunnels themselves shelter squirrelfish, glassy sweepers, and occasional lobsters.

The wall's position at the platform edge brings occasional pelagic visitors from the deep water, adding an element of surprise to dives.

Getting there

Tunnel Wall is located north of Lyford Cay on the western side of New Providence. The site is accessible via dive boat in under 10 minutes from Lyford Cay, or around 20 to 30 minutes from Nassau-based operators. It is often combined with other wall sites or the nearby James Bond wrecks for a two-tank morning.

Frequently asked questions

Are the tunnels at Tunnel Wall suitable for all divers?

Most passages are open swim-throughs rather than true caves, suitable for certified open water divers comfortable with enclosed spaces. Some larger tunnels allow groups to pass through together.

How deep does the wall go?

The wall descends into the Tongue of the Ocean, thousands of feet deep. Recreational divers typically explore to around 100 feet while enjoying the wall's dramatic topography.

What is the best time to dive Tunnel Wall?

Morning dives offer the best light for photography in the tunnels, with sunbeams filtering through openings. Conditions are generally calmest in the early morning.