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Scuba diving at The Cathedral (Cathedral Cave) in Crete
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The Cathedral (Cathedral Cave)

GREAT
CreteBoat
About This Site
The Cathedral, also called Cathedral Cave, is widely rated one of the finest cavern dives in Crete and the showpiece of the Chania dive scene. It sits on the exposed north coast of the Akrotiri peninsula, where a submerged limestone chamber opens in the cliff at about 14 m and drops to roughly 21 m. The cavern was once a dry cave hung with stalactites and stalagmites; geologists link its submergence to the great Minoan-era tsunami generated by the Santorini eruption, which drowned the formations still visible inside. Divers come for the dramatic light beams cutting through the entrance, the intact dripstone formations and the shimmering haloclines where cool freshwater seeps meet the sea, giving brief 1 degree temperature shifts and a blurred, oily-looking mixing layer.

Difficulty

Intermediate

Max Depth

21m

Type

Boat

Typical Visibility

20m

Conditions Summary

Best time today

4PM - 10PM

GREAT

Best day in forecast

Today

GREAT

2026-07-11

Community-reported visibility

n/a

Warnings for today

None

The Cathedral sits on the open north face of the Akrotiri peninsula, looking out across the Sea of Crete, so it takes the full reach of the summer Meltemi (N-NW), which is why operators watch the north wind closely for this site. To the north-east and east, though, the peninsula's own north coast curves ahead of the site at roughly 0.3-4 km, so those sectors arrive heavily clipped rather than open. The peninsula bulk directly behind it shelters the S-SE-SSW landward sectors almost completely, while the W-WNW window stays fairly open toward the Gulf of Chania. There is no real tide or ocean swell in this basin, but a Meltemi blow builds surface chop and surge at the shallow cliff entrance even when the cavern interior stays calm.

NNEESESSWWNW
Protected
Partially Exposed
Exposed
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