On a day when I am sitting at my desk all day, grading papers, sorting through piles of stuff on my desk, and feeling overwhelmed by the to-do list that gets longer every time I check my email, I can't help but think of places where I'd rather be. Walking along the shore in a light rain. Riding a raft through a rapid on the Colorado River. Sailing on the river. Paddling through a marsh in a red canoe. Lying in a hammock and looking up into the branches of an old oak tree.