Diani Beach, Mombasa, Kenya.Photo: Ninara, CC BY 2.0 , via Wikimedia Commons
The incident occurred on November 14 at Diani Beach, a popular resort area.
The woman had arrived a day earlier with a group of friends for a two-week holiday, officials said.
Her body was recovered and taken to a local mortuary for an autopsy.
Police said they have opened an investigation.
Local beach managers said they are taking steps to improve safety following a recent rise in drowning cases along the Kenyan coast, which has seen an influx of holiday makers in the past week.
(mk/gs)