Since it''s been pretty nice out, I've been itching to get outside and do stuff. Usually during the winter, I go into hibernation mode (school stress and crappy weather... ) I always play basketball, and couple summers ago I started running, not too intense but just so I could get my exercise. In the winter, the only thing I do active is probably Snowboarding and that's only every so often, but I love it. So I was thinking, what would compare to the fun and intensity of riding? I also find running to become a bit boring and seems like a waste of time. Besides stamina you don't really improve your "skills". The only things I could think of is rollerblading and skateboarding. Got any suggestions single activity exercising?