Joel Ryan / Invision/AP 1 / 9
Joel Ryan / Invision/AP 1 / 9

Who doesn't love to swim in the nude?

At George Clooney's Lake Como house in Italy, skinny-dipping is pretty much a rite of passage for all of his guests.

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"[Skinny-dipping] is a tradition at my house!" the 50-year-old told Us Weekly on Wednesday at the "Ides of March" premiere in New York. "It's funny. Some people skinny-dip, but I always go upstairs and put a suit on and then I jump in the lake."

Clooney's co-star Marisa Tomei told Conan O'Brien on Tuesday about skinny dipping in the lake at the actor's Italian estate. "Charlie Rose can be hot. [He, Evan Rachel Wood and I] had some hijinks over there," she said. "We would all end up skinny dipping!"

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When Us asked Clooney about Tomei's comments, he quipped: "Let me tell you. First I got Walter Cronkite to jump in. Then I got David Gergen to jump in. And I used Walter Cronkite to get Gergen to jump in. And I used Marisa and Evan in the lake to get Charlie Rose to jump in."

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So besides stripping down, what does the Oscar winner do to unwind? He joked playfully, "Drink!"