Cominotto Reef

A dive here starts with a descent onto a field of huge boulders, then follows the reef around whichever face the day's conditions favour. On the east side, the terrain steps down gently from the surface to about twenty-five metres through limestone boulders whose gaps and overhangs shelter octopus, especially in the early morning before the Blue Lagoon's tourist boats arrive. This face doubles as the reef's most productive macro ground, with nudibranchs turning up on the rock from late spring through autumn. The north face is a cleaner vertical wall from around ten metres past thirty-five, textured with gullies where grouper hold station out of the current, and barracuda regularly pass in mid-water. The south-west face holds the reef's most atmospheric ground: a series of shallow caves and deep overhangs between thirty and forty-five metres, entrances wide enough to swim into without full penetration gear, natural light filtering down to create striking silhouettes, and moray eels dense in the crevices throughout. Deeper still, isolated pinnacles and the wall itself drop past fifty metres, cooler and darker below the thermocline and the most demanding ground on the reef. Along the way, most divers stop to look for the fixed anchor, missing one of its four prongs.

Searchers sometimes confuse Cominotto Reef with the Cominoland wreck off Gozo. They're unrelated: this is the reef wrapping the perimeter of Cominotto islet, a short boat hop from Comino across the Blue Lagoon channel. Cominotto rewards repeat diving: its sub-sites span a shallow, approachable east side suited to second dives and specialty training, through to a deep south-west wall and pinnacle zone for experienced Advanced divers only. Most divers build their picture of the whole reef across several trips, not in one day. Its open-water position, away from harbour approaches and sediment runoff, delivers some of the clearest average visibility in the Maltese Islands. A World War II anchor, sponge-encrusted and lodged among the boulders at about thirty-five metres, is the reef's standout fixed feature: one operator describes a single four-pronged grapple missing a prong, another a pair of anchors nearby, and nobody has traced which vessel either came from.

An SMB is required on every dive: the north and west faces see heavy boat traffic toward the Blue Lagoon through summer. A torch helps explore the south-west overhang interiors fully, and a line-cutter is worth carrying on the north wall, where monofilament fishing line can turn up. Nitrox is strongly recommended for the deeper south-west and west sub-sites to extend bottom time below the thermocline. Guided groups here are capped at five divers per guide, and dives to 20m or deeper call for a three-minute safety stop at 5m. Photography splits by face: the east boulders favour macro, nudibranchs and morning light, while the south-west cave entrances favour wide-angle for the natural silhouettes. On rough days, the exposed north and west faces are skipped in favour of the sheltered east side. It's commonly combined with the Blue Lagoon or Lantern Point for a two-dive Comino day.