About 18 months ago God brought this incredible girl into my life. Her name is Kira. Among all of the amazing life changing things she has done in my life, like moving to Colorado, she also got me into rock climbing. More specifically I am now addicted to bouldering.
For the uninitiated, bouldering is a form of rock climbing without ropes or harnesses. Before you start thinking I'm completely insane let me explain why I love this style of climbing. I hate heights. See, in bouldering you never really go higher than 20 feet off the ground. You climb with a crash pad/mat under you in case you fall. Usually in gyms, like mine, the whole floor under the bouldering area is a 2 foot deep shield of padding.
I've been climbing for about 10 months now and I can honestly say I'm in the best physical shape of my life (not cardio shape though, thanks high school soccer), and I never have to go to the gym and lift weights or count reps or do crunches. Crunches are the devil. I've lost around 20 lbs and actually had to start watching my diet to make sure I'm eating enough so I don't keep losing weight. With rock climbing I never feel like I'm "working out" instead I'm just trying to complete a route, get a move down, keep my feet on the wall, etc...
If you want to get in shape without having to "go to the gym" and do repetitive exercises I highly suggest rock climbing. It will be a beat down the first month as your arms adjust to being used so much, but it's a ton of fun and extremely satisfying.