Wow man - just one! Such a trip and just one pic, can't believe your buddies didn't offer to snap a few more... The way I see it they owe you big time.
Dude in the red with white sunglasses holding the camera. I took about 2000 pics on this trip, yet only got that one of myself. Such is the life of having a DSLR. You take the great shots, but you hardly get any of yourself.