What it is like
Not a beach. A flooded sinkhole connected to the open sea by a tunnel through the cliff, with the Blue Hole and Fungus Rock a short walk over the rock to the south. The Azure Window stood here until it collapsed in March 2017, and the rubble is now a dive site in its own right.
The wind
Dwejra faces west and takes the full Atlantic swell that a punent or an lbic pushes in. When it is rough the boatmen will not run the tunnel and the Blue Hole entry becomes dangerous. In an lvant or a grigal it is calm.
Diving
The Blue Hole is the most dived site in the Maltese islands: a natural shaft in the rock that opens into the sea at about fifteen metres. Entry is over rock and there is a chain to help. It is a serious site in any swell.
The Inland Sea
Fishermen run small boats through the tunnel to the open sea and back for a few euro. Worth doing once, and the only way to see the cliffs from below.