To inspire a lifetime of ocean
adventures & stewardship
Celtic Deep is a social-enterprise driven by marine conservationists and freedivers. We’re passionate about exploring the ocean and connecting you with the UK’s iconic marine wildlife.
“For many people, a land-based puffin trip may be preferable – it’s certainly warmer – but for me this has been one of finest wildlife watching experiences ever”.
From puffins and seals to whales, dolphins, and bluefin tuna, Pembrokeshire’s waters are home to breathtaking marine habitats waiting to be discovered.
We specialize in unique, low-impact, mission-led wildlife experiences tailored to every adventurer—whether you’re a seasoned freediver, an underwater photographer, or just dipping your toe into the underwater world for the first time.
Conservation is firmly embedded into Celtic Deep’s tour operations, providing a platform for impactful research and community outreach projects
The kind of experience I might have associated with South Africa or the Baja peninsula has been had right on my doorstep.