About and Contact

Our trips look to explore the islands and offshore habitats in the stretch of water between Wales and Ireland. It is home for some of the UK's largest and most iconic marine megafauna. Whales, super pods of dolphins, even giant bluefin tuna. Sharks too. It's all out there. To enter the clear water of the open ocean and observe blue sharks 30 miles from the Welsh coast is an exhilirating experience. 

We're passionate about sharing the wonders of our marine world and getting wet doing it. Celtic Deep is run by conservationists. Our aim is to collect information and pass on what we learn about the spectacular wildlife that pass through our waters so that decision makers can put right measures in place to protect it.


Rushy Lake
Saundersfoot, Pembrokeshire SA699NY
United Kingdom


April to October open all season!


07939966539 (Fax)

Cancellation Policy

If your trip is postponed due to bad weather, we can either refund the balance or you can opt for us to move your booking to the next available trip that season.

If for whatever reason you cancel and there's no time to get a replacement, then you forfeit the balance.

If there is time to find a replacement you will be issued with a 90% refund or you can move your booking to a future trip. 

Cost includes: Boat rental, guide, teas and coffees.

Cost does not include (i.e. please bring the following with you) lunch, water, snorkeling equipment, wetsuit