The actor/director has been spotted sunbathing with the supermodel, her husband Rande Gerber and their two kids onboard luxury yacht Silver in St. Tropez, France.
The celebrity pals enjoyed a cruise together last summer (07) and decided to hit the high seas again.
The stars on Silver also hosted U2's Bono for a barbecue on Saturday (02Aug08), before escorting the rocker to his holiday home in Eze.
According to People.com, the Clooney celebrity cruise was last spotted off Sardinia's Porto Cervo.
Clooney will be back to work at the end of the month (Aug08) - he and pal Brad Pitt are scheduled to open the Venice Film Festival in Italy with their new film Burn After Reading.
Source: WENN