In the early hours of Tuesday, a family of four was snorkeling off North Bimini's southern point when a sudden, powerful current pulled two boys into the surf, leaving their mother scrambling to retrieve them.
She was swept away but was later rescued and taken to a clinic where a doctor pronounced her dead despite CPR.
Police at Alice Town received reports around 10 a.m., arrived at a ferry dock where the mother was found unresponsive; a doctor at a local clinic pronounced her dead despite CPR.
An autopsy will determine the exact cause, with no foul play suspected, the Royal Bahamas Police Force said.
The British Foreign Office, through a spokesperson, offered condolences and is coordinating support for the grieving family.