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DUBLIN BOAT DIVES Discover the best dive sites in Dublin Bay

Experience the magic of diving in Dublin Bay with Oceandivers

Guarded by Howth Head to the North and Bray Head to the South, Dublin Bay offers some really interesting dives sites suitable for all levels of certified divers. Oceandivers run a boat dive service with our 8.5 meter RIB to the most popular dive sites from Dun Laoghaire, Scotsmans Bay, Dalkey Island and the Muglins Rock. Our dive season usually starts in early April and runs through till mid October depending on the weather. Although the visibility is never as good as the Atlantic coast, there is still a good range of marine life to enjoy. Book a Dublin Bay boat dive online by just scrolling down to the bottom of this page.


View of Dalkey Island and Muglins Rock

Dalkey Island is steeped in history and served as the entrance to Dublin during the Viking times, there are numerous great reefs around this beautiful island ranging in depths from 5 meters to 27 meters. Drift dives down Dalkey sound can be very exciting and Seal Bay on the NE side lives up to it's name with large colonys of Grey Seals sunbathing on the rocks!

View of Dalkey Island and Muglins Rock

The Muglins Rock lies just to the east of Dalkey Island and it's one of the most popular dive spots in Dublin Bay, the granite walls tumble steeply down to a depth of over 20 meters covered in carpets of filter feeders and populated by some really large lobsters.

View of Dalkey Island and Muglins Rock

This photo shows the Coral Garden site on the east of Dalkey Island with Plumose Anemones and Sponges covering every millimetre of the reef.

How to book a Boat Dive with Oceandivers

  • You will need to be a certified diver with a minimum of PADI Scuba Diver
  • If you haven't dived in Ireland before or if you don't have previous colder water experience in limited visibility, then we can run a Local Orientation Dive for you with one of our Divemasters. These Orientation Dives will guide you through the techniques and gear we use in colder waters.
  • Check in time is always 1 hour before the listed departure time.
  • Unless otherwise stated, our boat departs from the main public slipway in the Coal Harbour of Dun Laoghaire Harbour where there is easy parking and access for loading. See Google Maps Link to the Coal Harbour Carpark.
  • BOOK NOW - click here to enter our Online Store Note that all boat trips are run and staffed by Oceandivers Ltd.