The Blue Hole is a natural rock formation carved out over the centuries by wind and wave power. Offering a sheltered entry for a number of dives, this site includes a huge archway which starts at 8 metres and has a flat top, almost square in shape, and covered in golden cup coral (parazoanthus axinellae). A large cave also worth exploring can be found at the bottom of the hole.

This dive then leads you round to the left, or west, until you reach a fissure in the near-vertical wall. This opens up at around 6 m; directly ahead of you is another, much smaller hole that is perfect for photography. Exit by retracing your route to the Blue Hole or the flat reef just to the left of the Blue Hole headland. This site is very popular later in the day, so get there early to have a place!

Location:

Directly in front of the Azure Window, at the bottom of Dwejra Point

Access:

Reached via a fairly difficult walk over ancient coralline limestone. The rough path leads you down to the shore, where a shallow-water shelf leads to the right where the Blue Hole is formed.

Conditions:

Sheltered at most times in the hole, as it is protected by a fringe of rock.

Average depth:

20 m

Maximum depth:

45 m

Average visibility:

45 m