Premise: "A young man in a yellow and orange bathing suit squatting on a rocky protuberance overlooking the water."\nHypothesis: "A man is squatting down on rocks to search for his keys that he dropped in the water."\nDo we know that the hypothesis entailed by the premise?
Let's be accurate as possible and think first.
it is not possible to tell
A man squatting does not imply to search for his keys.

.

Therefore, the answer is it is not possible to tell