A British diver has died after becoming trapped in the Gouffre de Saint-Sauveur cave system in Calès, southwestern France. The 43-year-old, whose name has not been released, entered the cave on Friday and became stuck in a narrow passage, reportedly entangled in the guide line—a rope used to mark the path for divers. The situation was discovered when he failed to return to the surface at the cave's entrance, prompting concerns from his diving companions. The diver was part of a group of eight British cave divers who had descended into the caverns around 3:30 pm. When he did not return by 8 pm, his fellow divers contacted emergency services. Throughout the night, specialist cave rescue teams and firefighters searched the area, but progress was slow due to the complex and dangerous nature of the caves. A more extensive rescue operation was launched the following day, with additional teams and equipment arriving by helicopter, including the Gendarmerie's marine brigade from Marseille. During the search, rescuers had hoped the diver might have reached an air pocket at a depth of 262 feet (80 meters), a common strategy for divers in such situations. However, he was not found there. He had started his dive with an eight-hour oxygen supply and a backup tank, which was later found unused. On Sunday, search efforts resumed and a body was discovered underwater at a depth of 288 feet (87 meters). Due to the challenging conditions, including narrow passages and poor visibility caused by the rescuers' movements, the body could not be immediately retrieved. An investigation into the cause of death has been initiated by the Gendarmerie. The incident highlights the risks involved in cave diving, where even experienced divers can face life-threatening situations due to the unpredictable and confined nature of underwater environments.