I've known I wanted to study civil engineering since the 6th grade. The son of a city housing inspector, I grew up in a house that was constantly under construction. Paired with my love for math and physics, I knew civil engineering was still the right choice when it came to applying for college. Out of school, I joined a construction firm that equipped me with greater appreciation of the skills and knowledge of tradespeople that I wish to incorporate into the engineering practice.
I once ran 53 miles to my house on my birthday, just for fun. It might become a tradition, but we'll see.
I'd go hike (or run) the tallest and/or steepest trails of every national park.
If I had the time, I would run to work, but the train is also pretty convenient too.