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Eduardo Cruz is currently in Miami with his sexy girlfriend and Desperate Housewives' actress Eva Longoria, but he's spending the day solo.

Penelope Cruz's younger 24-year-old bro seems to be letting it all hang out while enjoying some water sports with the guys. For being so young, we'd expect him to be a little more ripped. Well, there's still time before summer to get in shape!

See Eduardo taking a ride on his jet ski ... after the jump.