Blue Hole (Gozo)

Dwejra, Gozo · Gozo · Malta

The Blue Hole is Gozo's most iconic dive site and one of the most celebrated dives in the Mediterranean. Located on the dramatic Dwejra coastline on the western tip of Gozo, this natural geological formation is a vertical chimney in the limestone coast, roughly 10 metres in diameter, that drops from the surface to a stunning underwater arch at 15 metres. The arch opens onto an outer wall that plunges vertically into deep blue water beyond 60 metres, creating a dive experience that caters to every level from Open Water to advanced technical diver. The dive begins with a stride entry into the chimney from the rocky shore. The first sensation is striking: daylight shimmers above as you descend through crystal-clear water down the smooth limestone walls of the shaft. At 15 metres, the chimney opens through a large arch into the open sea, and the transition from the enclosed shaft to the vast blue wall is one of the most dramatic moments in Mediterranean diving. The arch itself is magnificently framed by light from both sides, making it one of the most photographed underwater features in Malta. The outer wall is a masterpiece of natural architecture. Sheer limestone drops away beneath your fins, encrusted with sponges, tunicates, and patches of false coral. In the crevices, moray eels coil in their hiding spots, while groupers hover at the wall edge with characteristic curiosity. Looking into the blue, schools of barracuda and amberjack cruise past, sometimes approaching closely before wheeling away. In the shallows above the arch, damselfish and bream create constant motion against the sunlit rock. The Blue Hole was historically paired with the Azure Window, the famous natural limestone arch that stood on the cliff above until it collapsed during a storm in March 2017. The rubble from the collapse now lies on the seabed at the base of the site, and marine life has begun to colonise the new substrate, adding another dimension to the dive. Visibility at the Blue Hole is typically outstanding, regularly exceeding 30 metres and sometimes reaching 40 metres in winter. Water temperatures range from 15 degrees in February to 27 degrees in August, making it diveable year-round. The shore entry means no boat is required, and the site is dived multiple times daily by operators from across Gozo and Malta. Despite its popularity, the sheer scale of the wall and the depth available mean that the site never feels crowded underwater. The Blue Hole is a dive that repays repeated visits, offering something different in every season and at every depth.