Blue Hole

Blue Hole, Dwejra, Gozo, Malta
Depth: 15m (avg), 25m (max)
Level: Advanced Open Water Diver or equivalent
Overview:
Blue Hole in Dwejra is arguably the most famous and visually striking dive site in Malta, offering a superb setting for scuba diving, snorkeling, and freediving. This naturally formed circular sinkhole in the limestone about 10m wide and 5m across creates a sheltered pool protected by a fringe of rock that ensures safe entry and exit.
Site Details:
- Blue Hole & Undwater Window: The sheltered pool of Blue Hole reaches a depth of around 15m. An elegant archway (or underwater window) at approximately 9m depth leads from the pool into the open sea. The walls are decorated with vibrant coral tubeworms, sponges, and other small marine life.
- Cave: Inside the Blue Hole there is a large cave that goes on for 15 meters.
- Everest: Like its name implies, there is a large pinnacle cut like Mount Everest.
- Chimney Tunnel and Coral Gardens: Divers can navigate through a vertical fissure known as the “chimney,” ascending from deeper sections to emerge into vibrant coral gardens illuminated by sunlight filtering through overhead openings. To conclude the dive, one can either perform a safety stop within the sheltered confines of the Blue Hole or exit after ascending the chimney into the Coral Gardens.
Dive Highlights:
- Accessibility: While accessing Blue Hole requires a challenging 200m walk over rocky terrain, the reward is an unforgettable underwater adventure marked by clear waters, intricate rock formations, and a wealth of marine life.
- Marine Life: Exploring beyond the Blue Hole towards the former location of the Azure Window, divers may encounter schools of damselfish, picarel, and bogue near the cliff face. Looking upwards, it’s possible to spot predatory species such as dentex and amberjack patrolling the waters above. You may also find moray eels creeping out of crevices, octopuses, cuttlefish, fire worms, red sponges, soft corals, cardinalfish, damselfish, rainbow wrasse, scorpionfish, sea urchins, starfish, hermit crabs, and red mullet.
Why Visit?
Blue Hole is a must-visit dive site for those exploring Malta. Its iconic natural formation, coupled with the diversity of underwater features and marine life, offers an exceptional experience that appeals to divers, snorkelers, and freedivers alike.