My male friend and I (both 22) have not seen each other since graduation last year because we live on opposite coasts, but we really want to see each other and have decided to take a trip to the Grand Canyon either at the end of the summer or in November. I'm trying to figure out some fun activities for while we're down there. And in the back (ok, front) of my mind is the fact that there's decent sexual tension between us, so couple-y activities would be nice. If we go at the end of the summer, it would likely be closer to a week. If we go in November, probably no more than 4 days. Suggestions?