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Gozo's Blue Hole stands out for current-drift-diving due to its limestone sinkhole feeding into open sea via a dramatic arch, where predictable mild currents sweep divers past Azure Window ruins and sheer walls. The site's 15-50m depths combine sheltered entry with exhilarating drifts, unmatched in the Mediterranean for accessibility and marine biodiversity. Collapsed in 2017, the window's boulders now form an artificial reef amplifying drift paths with swim-throughs and overhangs.
Prime drifts start at Blue Hole's arch, flowing to Azure Reef at 9-40m, or reverse from Inland Sea through caverns like Coral Cave. Nearby Reqqa Point extends drifts along 50m walls with barracuda runs, while Xlendi Tunnel adds overhead drifts. Divers encounter damselfish, moray eels, and occasional turtles amid 20-30m visibility.
Target May-October for water temps of 20-26°C and currents below 1 knot; winters bring swells over 2m. Expect 45-60 minute dives with 3-5m/min drifts; prepare for rocky shore entries via ladders. Local centers provide air fills and nitrox for repetitive drifts.
Gozo's diving community thrives on family-run centers in Dwejra and Marsalforn, where Maltese guides share folklore of the Azure Window amid post-collapse reef growth. Divers integrate with eco-initiatives monitoring invasive lionfish during drifts. Inland Sea boat tours offer non-divers a cultural glimpse before drifts.
Book dives 24-48 hours ahead through local operators like those at Dwejra, prioritizing morning slots for slack tides and minimal swell. Check weather via Windy app for currents under 1 knot; avoid winter months due to rough seas. Advanced Open Water certification required for drifts beyond the arch.
Arrive at the cliff-top entry 30 minutes early to gear up and assess wave conditions before the ladder descent. Bring reef-safe sunscreen, a rash guard for surface intervals, and a dive light for cave drifts. Hydrate heavily and eat light carbs pre-dive given the 200m walk with full kit.