The 60-year-old actor was photographed on Barbados displaying a figure which would not disgrace a man 20 years his junior.
He certainly looked a lot trimmer than he had six years ago when, with his wife Catherine Zeta-Jones, he took to the beach near their home in Majorca with a distinctly saggy belly.
In the latest pictures Douglas, who spent much of his time on a mobile phone, appears to either have been dieting and working out or to have had liposuction and a skin tuck.
Last week, the actor was seen with bleeding scars by his ears, an indication of recent cosmetic surgery.
In 2000, he had a face and eye lift before his wedding to 35-year-old Miss Zeta-Jones.