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To swim or not to swim? That is the question.

Victoria Bonn-Meuser / EPA

A man tests the water temperature at a public swimming pool in Essen, Germany, on Tuesday, June 21. Despite the beginning of summer the temperatures remain fairly low.

Are you one of those people who has to test the waters before you get in? Or, like me, do you dive in head first and take what comes?

It might be cold in Germany, but the U.S. has seen a few hot spells. See more cool photos of people staying cool in our summer slideshow.