Amy Winehouse is shocking guests with her drunken antics at Le Sport Spa in St Lucia, according to a new report.

The Rehab star is said to soaking up the sea and sun in a bid to put her druggy past and soon-to-be ex-husband Blake Fielder-Civil behind her.

But Amy hasn't quite managed to quit all of her bad habits, with claims that she has been supplementing her gymnastic workouts with regular booze binges - much to the dismay of fellow hotel guests.

A source tells The Sun, “We keep catching her crawling past bars, or hiding behind chairs. She grabs guests’ drinks and runs off, like a squirrel with a nut.”

Another guest says, “One minute she is very pleasant, saying, ‘All right darlin’ and chatting to people and having photos taken.

"The next she is throwing things and swearing her head off.

“She’s like a child craving attention. It’s embarrassing. She comes in for dinner barefoot and in her bikini, even though the dress code is smart casual.

“Then she will go and sit on her balcony topless playing the guitar when everyone is trying to sleep.”

See Amy in a fit and healthy moment below