The body of 56-year-old Sarah Tullier has been found on Fishermen's Beach in Herm.
Mrs. Tullier was reported missing by Guernsey Police overnight.
Her next of kin have been informed.
The force says its thoughts are with her loved ones.
"Our thoughts are with her loved ones at this difficult time. Police are not currently treating her death as suspicious, and a post mortem will be carried out in due course."
More to follow...

Guernsey dance school upset by temporary theatre closure
Guernsey's business leaders come out against a plan to pause GST
Plans to improve the gene pool of the Royal Golden Guernsey Goat
Fog causes flight chaos at Guernsey Airport
Channel Islanders asked to report injured or dead seabirds
More than 200 emergency callouts for overflowing cesspits in Guernsey
Guernsey Library to host Costume Creation event ahead of World Book Day
Domino's Pizza to open in Guernsey