Since arriving in Italy almost two weeks ago, the Ocean's Thirteen star has been spotted speeding in a motorboat and making time for some male bonding with pals over an afternoon round of golf in the nearby town of Menaggio.
"They didn't use a golf cart; they chose to walk around the course," says an observer, who adds that Clooney is a regular when he's in town.
Though Clooney is known for cruising on his hog, the former Sexiest Man Alive is "actually quite good for someone who does not give the sport much time and practice," says the source of Clooney, who rode off on a Harley after about three hours on the green.
Clooney, 47, and Larson, 29, parted ways last month after a year of dating. Larson, who has stepped out several times since the split, is moving forward and focusing on modeling, say friends.