Discover an unforgettable underwater adventure with the Celtic Deep
Celtic Deep boat tours offer thrilling, conservation-focused marine wildlife adventures off the Pembrokeshire coast, including encounters with sharks, dolphins, whales, puffins, and seals.
Choose which adventure you'd like to book and get your tickets for the lowest prices you'll find anywhere online:
These full-day and half-day tours are led by marine biologists and free-divers passionate about ocean stewardship. From July to October, guests can snorkel with blue sharks 30 miles offshore, while island trips to Skomer, Skokholm, and Lundy offer sightings of puffins (April–July).
A Celtic Deep tour also ensures a low-impact, conservation-led adventure designed to deliver unforgettable wildlife encounters that benefit both people and planet.
Take a look at the Celtic Deep tour options and book your tickets today!