Paul Serone: They strike, wrap around you. Hold you tighter than your true love. And you get the privilege, of hearing your bones break before the power of embrace causes your veins to explode.
In one shot when the boat is pulling away from the waterfall, you can clearly see that the shot is the same one they used earlier in the movie. The water from the waterfall now is going up the cliff! They have just put it in reverse.