I like to go running. Right now, I can go 4 miles in 32 minutes on average. I've never made it in less than 30 though, and that's my current goal. I try to go running between 2 and 3 times in each week. It feels really good, and I really enjoy it. Because of this, I'm in the best shape of my life up to this point, and that feels really cool to be able to say.
I also really love bicycling. It's really fun to get up close and personal with my town and explore in ways that I couldn't if I were in a motor vehicle or walking. It's something I do whenever I'm feeling adventurous.
Music. I play bass guitar. I enjoy playing and learning the songs that I like to listen to. I'm hoping to get a band together this summer. It'd be fun to gig, and I know I could handle it just fine at this point. I also sing. I'm practicing playing and singing at the same time lately. Could come in handy.
Video games, but that's kind of obvious.
I don't know if it counts, but reading. I'm currently really enjoying Sir Arthur Conan Doyle's Sherlock Holmes stories. A Study in Scarlet was fantastic. These stories definitely pass the test of time. They're still very interesting reads with a great writing style.