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...

L'Ecume II: Lewis Carr jailed for 20 months for fatal collision at sea
Guernsey's former Chief Minister admits making indecent images of children
Guernsey Deputy and wife arrested and questioned by police
Guernsey Post expect to deliver 750,000 parcels this Christmas
Alderney to get a Royal Visit on 15 December
Two airlines bid to operate Guernsey's essential air links
Guernsey overtakes Jersey as top Channel Island for UK Sea Travel
Agency staff to cover ambulance services in Alderney over Christmas