The incident occurred near the southern point of the island of Bimini on Tuesday morning, according to police. The woman was snorkelling with her husband and their two sons when a strong current reportedly swept the children away. In an attempt to rescue them, the mother was also swept away. The children were later rescued from the water.
Police said officers at the Alice Town police station received a report shortly after 10 a.m. that a woman was unresponsive at the North Bimini Ferry Dock. She was taken to a local clinic, where a doctor pronounced her dead despite efforts to save her life. CPR was administered at the dock before transport.
The woman is believed to be from Stapleford in Nottinghamshire, though police have not yet released her name. An autopsy will be conducted to determine the exact cause of death, and foul play is not suspected.
The Foreign, Commonwealth & Development Office said in a statement: "Our thoughts are with the family of a British woman who has died in the Bahamas. We are in contact with the local authorities and providing support to her family."