A British woman who was missing for a month after she vanished from her sunbed while her husband was sleeping died from drowning.

Michele Bourda, 59, suddenly disappeared from Ofrynio beach, in the Greek city of Kavala on August 1 and left all her belongings - including her glasses, medication and even her towel - on a sun lounger while her husband slept.

Her body was finally found more than a month after she first went missing, her husband Chris, 66, told the Daily Mail on Thursday.

Mrs Bourda's body was located on a small, privately owned island called Fidonisi, around 40km down the coast from where she was last seen.

An autopsy took place on Friday and medical experts have confirmed she almost certainly died from drowning.