[nicko]

Have you tried orienteering? You get the running around in the woods like an 8 year old plus the mental challenge of navigating and route selection. The community is also generally intelligent and you get to see some awesome places too.

[pavelludiq]

No, not in the woods, but i tried parkour when i was 17 and it was fun for a while, but then i hurt myself and that was the end of it. I could try orienting next spring.