Plan + Spots · Destination Guide

Causeway Coast and Rathlin Island

Cold-water wrecks, tidal walls and basalt coastlines at Northern Ireland's wild northern edge

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Portnahapple

Kelp forestReef

Shallow sheltered Portstewart inlet with kelp, rocks, and parking.

Visibility7 m

AccessEasy entry

CoralHeavily damaged

Marine LifeGreat variety

FacilitiesGood facilities

CrowdModerate

CurrentNo current

SurgeFlat calm

Three Sisters

Reef

A wave-exposed shore dive on the Blackrock headland.

AccessModerate entry effort

CoralHeavily damaged

Marine LifeSome life

FacilitiesBasic facilities

CrowdFew visitors

CurrentNo current

SurgeHeavy surge

All Dive Spots

View On Map

Portnahapple

Kelp forestReef

Shallow sheltered Portstewart inlet with kelp, rocks, and parking.

Visibility7 m

AccessEasy entry

CoralHeavily damaged

Marine LifeGreat variety

FacilitiesGood facilities

CrowdModerate

CurrentNo current

SurgeFlat calm

Three Sisters

Reef

A wave-exposed shore dive on the Blackrock headland.

AccessModerate entry effort

CoralHeavily damaged

Marine LifeSome life

FacilitiesBasic facilities

CrowdFew visitors

CurrentNo current

SurgeHeavy surge

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