Cominotto Reef

Also known as: Anchor Reef, Cominotto Rock, Lautier's Reef, Sikka tal-Lautier

A multi-face reef off Cominotto islet near Comino's Blue Lagoon: shallow boulders to a 50m wall, centred on a WWII anchor at 35m.

Last updated July 2026

The dive

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, the fixed landmark most divers ask about is a sponge-encrusted WWII grapple anchor at about thirty-five metres, missing one of its four prongs. Some accounts describe a second anchor nearby, though that detail isn't confirmed across sources.

What makes it special

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. Lantern Point and Santa Marija Caves each build around one signature feature. Cominotto works differently, built for repeat visits rather than a single showcase dive: a shallow, approachable east side suited to second dives and training, and a deep south-west wall and pinnacle zone that only experienced Advanced divers should attempt. Most divers build a picture of the whole reef across multiple trips rather than covering it 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. The WWII anchor, named independently by more than one operator running trips here, remains the reef's single most-cited landmark, even though nobody has documented which vessel it came from.

Know before you go

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. 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.

Why Dive Cominotto Reef

What makes this dive site stand out.

  1. WWII grapple anchor at 35m

    A sponge-encrusted four-pronged anchor, the reef's single most-cited landmark

  2. Four distinct reef faces

    East boulders, a clean north wall, south-west caves, and a deep pinnacle zone

  3. Exceptionally clear water

    Away from harbour sediment, visibility regularly tops 30m in season

  4. Not the Cominoland wreck

    A separate site from the unrelated Gozo ferry wreck of a similar name

  5. Moderate to advanced range

    East-side boulders suit guided less-experienced divers; the south-west needs AOW

Depth & Profile

5m
Min depth
50m
Max depth
15–40m
Typical range
ReefWallRockSandPosidonia

Location

36.0134°N, 14.3210°E

Conditions & difficulty

Temperature
14°C – 28°C
Visibility
20–35m
Current
Moderate
ModerateMin cert: Advanced Open WaterNitrox recommended

Summary

The shallow east-side boulders (10-25m) suit less experienced divers with a guide; the south-west caves and deep pinnacles (30-50m+) push well into advanced territory

Safety considerations

What can go wrong here, and what divers do about it. Conditions change - take the briefing from the operator on the day.

  • Current: The northern face can run moderate current when the prevailing north-west wind is activeCheck current on the surface before descent; the east-side sub-sites stay calmer if conditions are running
  • Surface and boat traffic: The north and west faces see heavy tourist and ferry traffic toward the Blue Lagoon in summerAn SMB is required on every dive to mark your position for passing boats
  • Overhead: The south-west caves and overhangs (30-45m) are naturally lit, wide-mouthed spaces, not technical cave passagesCarry a torch to explore the overhang interiors fully and keep buoyancy steady
  • Overhead: Monofilament fishing line can be present on the northern wallCarry a line-cutter or knife

Marine Life

Frequently Asked Questions

Is Cominotto Reef the same as the Cominoland wreck?

No. Cominotto Reef is the reef and wall circuit off Cominotto islet, near Comino's Blue Lagoon. The Cominoland is a separate, unrelated ferry wreck off Xatt l-Ahmar in Gozo; the names simply share a root.

What certification do you need for Cominotto Reef?

Advanced Open Water for the reef overall. The shallow east-side boulders are accessible to Open Water divers under close guide supervision, but the deeper south-west caves and pinnacles need AOW and, past 40m, documented deep experience.

Where is the WWII anchor at Cominotto Reef?

A sponge-encrusted, four-pronged grapple anchor sits at about 35m among the boulders, missing one of its prongs. Some accounts describe a second anchor nearby, though that detail isn't confirmed across sources, and its vessel of origin has never been documented.

Can beginners dive any part of Cominotto Reef?

The shallow east-side boulders, around 10-25m, are described as suitable for less experienced divers under guide supervision. The reef's other faces, especially the south-west caves and deep pinnacles, are Advanced-only.

How does Cominotto Reef compare to Lantern Point?

Both are advanced west-side Comino dives, but Lantern Point is one continuous wall built around a single chimney feature, while Cominotto Reef splits across several distinct faces, from shallow east-side boulders to deep south-west caves and pinnacles.

What will you see diving at Cominotto Reef?

Moray eels dense in the south-west cave sections, grouper holding along the north-face gullies, octopus in the east-side boulders, and barracuda schooling off the northern point. Amberjack, sunfish and turtles turn up occasionally.

Do you need a permit to dive Cominotto Reef?

No. Comino is a Natura 2000 protected area for habitat and seabird conservation, not a marine reserve, so no diving permit, quota or fee applies. You pay only your boat operator's trip fee.

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