i guess ill be the first one to answer this seriously....
go on a cruise. it will, undoubtedly be the best week of your life. my senior year i went on a cruise with 13 of my frat brothers, two of whom are friggin billionaires, and they bought the royal suite, which is the biggest room on the boat. 300 sq foot balcony, its own bar, grand piano, two rooms, flat screen tv's, access to a suite-members only room where you get free drinks and food, two bathrooms, a jacuzzi, etc etc...any girl we'd see we were like "oh come up to the royal suite!" and clearly we had them. it was like our headquarters. spring break cruises are FULL of young people, and if you cant get laid you dont deserve a penis. not to mention all the cool shit to do on the ship. drinking, gambling, clubbing, karaoke, ***, shows, ice skating, rock climbing, sports, gym, its practically its own city. but make sure when you book it that you dont stop in belize...that place is fvkin scary. otherwise, definitely 100% go on a cruise, you wont be disappointed.