That is Jon Replogle and Mark Steinem, playing Fish Tales while fishing. These photos were snapped by a passer-by and went a little viral. Here's what Mark has to say:

"This will be 90 seconds worth of material for a PAPAtv episode released sometime later this year. We will be and have been taking numerous games to unusual places to generate interviews with random people, interest in the game, and interesting footage. This photo is of one of those trips that has leaked out, and shockingly fast...

PAPAtv will be many things."