Biography
We’re proud to support Barry’s continued exploration and preservation of some of the world’s most iconic shipwrecks. His experience, dedication, and passion for underwater heritage perfectly reflect what O’Three stands for.
Barry is one of the world’s leading technical divers, known for his passion for exploring deep-water shipwrecks and for discovering and documenting previously unrecorded wrecks around the Irish coastline and beyond. Through years of international expeditions with his company Indepth Technical Diving, Barry has pushed the boundaries of exploration at depths from 60 m to 160 m.
For over 20 years, he has played a key role in high-profile expeditions to wrecks such as RMS Lusitania, working closely with the wreck owner and Ireland’s National Monuments Service to help protect and document this historic site. Most recently, in July 2025 Barry led a team of expert wreck divers back to Lusitania to document the current condition of the wreck and many of its most important surviving artifacts.
He has also been deeply involved in groundbreaking internal survey projects on HMHS Britannic — including the first government-approved interior survey in 2021, additional surveys in 2023, and artifact recovery dives in 2025 which seen many significant artifacts such as the ships bell being recovered under licence for the ships owner and the greek government. These artifacts are now undergoing preservation and will form part of the new maritime museum opening in Athens in 2026.