It’s a pretty cushy f.g. job actually, if you like the outdoors thing, because you’re basically paid to go on club trips: hiking, camping, rafting, etc. – and you’re given $2000 worth of gear. (You may have to put in hours at a Sierra Club office too, though.)
2011’s intern, Kokei Otosi, who goes to New York University, was based out of the San Francisco office. If you want to see what it’s like, you can check out her videos about her experiences.