Oceanatik logo
Oceanatik logo
HomeDestinationsDive SmartContact Us
Three Castle Head

Three Castle Head

County Cork, Ireland

Depth
Depth Icon

60m

Visibility
Visibility Icon

6m - 18m

Entry
Boat Entry Icon

Boat

Experience Level

Advanced


About Three Castle Head

The Southern end of Dunmanus Bay is reached at 3 Castle Head where the 50m depth contour almost touches the shore and in fact the drop off is so fast that it is hard to find water shallow enough to drop anchor! The last 100m of the bay offers the best of diving with massive cliffs above and below water. Below the surface extensive rock faces are covered in every kind of life and large shoals of fish abound. The best of the scenery is in the 25-35m range, with rocks tumbling down a further 25m below this again. A strong tidal current flows across the point so be careful not to venture into it if the tide is running. This site is exposed and isolated and requires calm weather, experienced divers and reliable boats to be dived safely. However, the rewards well justify the extra effort.

Three Castle Head Dive Info

Terrain & Features

Reef, Drop Off, Rock

Entry Type

Boat

Max Depth

60m

Visibility Range

6m 18m

Experience Level

Advanced

Best Gas

Marine Life

  • Various
Weather Conditions

Weather information for Three Castle Head coming soon.

Dive Operators near Three Castle Head

We couldn’t find dive operators near “Three Castle Head”. You can browse all operators in Ireland here.

Location

Location details missing.

Dive Site Hazards

Hazards data unavailable.

Discover More

Discover Ireland

Oceania - Australia

Scuba diving in Australia offers an unparalleled mix of adventure, biodiversity, and world-class dive infrastructure. From the iconic Great Barrier Reef and remote Ningaloo Reef to historic wrecks like the SS Yongala and kelp forests teeming with sea dragons, Australia’s underwater landscapes are as diverse as its terrain above. With warm tropical waters in the north and temperate marine life in the south, the country caters to every level of diver. Whether you’re chasing whale sharks, exploring deep drop-offs, or drifting through coral gardens, Australia is a top-tier destination for unforgettable diving experiences.

Learn More

Europe - Croatia

Scuba diving in Croatia blends Mediterranean charm with rich underwater history. With over a thousand islands, clear waters, and easy access to dive sites, the Adriatic Sea is a hidden gem for divers of all levels. Explore Roman amphorae, World War-era wrecks, dramatic reef walls, and sunlit caves—all in warm, calm waters with excellent visibility. From the historic shores of Dubrovnik to the remote islands of Vis and Cres, Croatia offers a unique mix of cultural exploration and underwater adventure that’s both accessible and unforgettable.

Africa - South Africa

Scuba diving in South Africa is a one-of-a-kind experience, offering everything from vibrant coral reefs and epic shark encounters to historic shipwrecks and surreal kelp forests. Stretching across two oceans, South Africa’s dive sites cater to all levels, whether you're a beginner seeking calm tropical waters in Sodwana Bay or an advanced diver ready to take on the currents of Protea Banks. With abundant marine life, dramatic underwater landscapes, and world-class diving infrastructure, this destination delivers unforgettable adventures both above and below the surface.