Trevor Fishlock hears amazing stories of tragedy and heroism at sea.
Porthcawl local historian Gary Victor describes the storm which destroyed the ship Samtampa off Sker Point 70 years ago.
Every member of the crew died, and so sadly did each man on board the Mumbles lifeboat which went to the rescue. The horrific death toll numbered 47 in all.
Trevor also delves into the archive for a visit to Holy Island. He hears the story of Holyhead and meets diver Norman Warden Owen who had to cut off his own fingers when he became trapped under the sea.