Over the past 15+ years, exploring iconic shipwrecks such as the R.M.S. Justicia, H.M.S. Audacious and R.M.S. Lusitania left a significant impression on Barry, which helped develop his desire to discover and explore shipwrecks. Barry has organised and led many deep wreck expeditions exploring the deep wrecks off the North coast of Ireland, which included the S.S. Empress of Britain in 162m and S.S. Transylvania in 130m. Barry has also been part the teams that first discovered and explored the wrecks of HMS Curacoa in 125m (410ft), White Star Liner Carinthia in 116m (380ft), HMS Hurst Castle in 85m (279ft) and World War 1 German U-boats UB 124 and U45 in 65 m (213ft).  

Barry aims to share his passion for shipwreck exploration by capturing and sharing his images of many previously unphotographed shipwrecks including R.M.S. Amazon, H.M.S. Viknor and H.M.S. D6. Barry has been part of a number of television documentaries and his images have appeared in a number of books and other publications, including the New York Times. Barry has also talked at many technical diving conferences such as Dive Ireland, Eurotek, Baltic Tec, TecDive and Oztek.