As shared by The Daily Mail, Perry was snapped while enjoying the beach area of the Tyrrhenian Sea wearing a multicolored two-piece bikini and donning some scuba gear.
She also took an opportunity to relax and soak up some sun while also catching up on a little light reading.
After spending some time beside the water, Perry headed out into, jumping on a large yacht with friends and going for a swim.
Earlier this month, the pop star made waves on the internet when she outright ranked her former boyfriends on their bedroom performances.
During a YouTube live stream to promote her new album, Witness, James Corden, host of CBS's The Late Late Show, dropped by to chat with Perry and ultimately convinced her to divulge who was the best she ever had and who was the worst.
Starting at the bottom of the list, Perry said that her least favorite partner was DJ Diplo, who she dated briefly a few years ago.
The second place trophy went to her most recent beau, actor Orlando Bloom (The Lord of the Rings: The Fellowship of the Ring, Pirates of the Caribbean: Dead Men Tell No Tales).
Topping the list, to no one's surprise, is musician John Mayer, whom Perry has had an on-again-off-again relationship with for years.
Ultimately, though, Perry said, "They're all amazing lovers and I would have sex with all of them when I get out of this place!"
Not content with leaving the conversation at loves she's had, the conversation turned to loves she missed out on.
Perry told Corden that she felt like pop-opera singer Josh Groban was "the one that got away," and added, "He's one of my good friends. I love him so much. He's the best."