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About Causeway Coast
The Causeway Coast in County Antrim takes its name from the Giant's Causeway — the UNESCO World Heritage basalt columns that continue underwater in equally dramatic formations. The basalt reef systems, sea caves and gullies at 8–25m provide a unique geological setting for diving, with cold-water biodiversity matching the iconic surface landscape. Multiple wrecks from the North Channel's long shipping history add variety, and the rugged terrain rewards divers who explore slowly. Ballycastle to the east gives access to Rathlin Island on the same trip.
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