If you "once hiked the Billy Goat Trail and that was great and you'd really like to get into hiking more", then, I might not be the one for you.
Other than crunchy granola activities, I studied Computer Science in undergrad and am in grad school for Geography, so I'm currently on the "get psyched about awesome science" bandwagon. Which really just means that I do lots of homework, write code, and try to read academic journals. Key word here is try.
Occasionally (i.e. forever ago) I sew cool things like camping gear and bizarre Halloween costumes. In general though, I am useless for the cultured city things like restaurants and art shows.