[Gn2Dlnd]

Spoiler:

Having only been on it once, I'm not sure where the transition(s) occur, but the effect is seamless. I'm guessing that all the water dripping off the subs gets recycled through the floor back into the lagoon, but I'm pretty sure that there's no water at all in many of the scenes. Very clever lighting does the job. Could be that the subs pass through a big car wash blow-dryer during one of the noisier scenes.

Hey look, a duck with no pants!