When Kay and Andy are at the pool, and the camera changes back and forth from one to the other, our view of Kay keeps changing from applying suntan lotion to just lying there.
In frustration and pain, Damian tears his wife's scarf. Later he ties the whole scarf around his arm.
Once Damian finishes climbing down from the cliffs, and for the rest of the movie, he applies too much pressure to his badly broken leg.
About 10 mins into the movie a different smaller trailer is towed then the one shown just before.
When Damian climbs back up the cliff to loosen the rope he had tied, he carries all his equipment with him. Why? He's only going to climb back down again.