Zalew Zegrzynski

People enjoy a sunny day at the Zalew Zegrzynski lake near  Warsaw, Poland, Thursday, Aug. 8, 2013, as the temperature in the shade reached 38 degrees Celsius (100,4Fahrenheit).

Alik Keplicz/AP

People enjoy a sunny day at the Zalew Zegrzynski lake near Warsaw, Poland, on Thursday, as the temperature in the shade reached 38°C