Sea Pen with kelp above in the distance (Nootka Sound, British Columbia Canada). The green is not Photoshopped in for effect. The cold waters of B.C. really are green - due to algae.
Closing In: A curious tiger shark and several lemon sharks seem to be closing in on Eric Cheng, who is intent on shooting video of them. Although divers certainly must show respect to sharks, it is rare for sharks to actually attack humans. Thus, Eric is not being foolhardy. On the other hand, I think we can be sure there is at least a little adrenaline running through his system at this particular moment!
