When Mitch first carries the "drunk" boy out of the water, the boy is wearing wet suit "boots". In the next shot - where Hobie and the other boy are running back toward Mitch - the rescued boy is barefoot.
When Johnny gives Connor the bottle, there is more beer in it than when Johnny was drinking from it a second before.
When C.J. and Neely toast and clink their bottles together, Neely's bottle jumps to her mouth in the next shot.