Nature lovers enjoy good time in Papingo, Greece

A man waits for the start of the river rafting lesson with his daughter in Papingo, 350 kilometers northwest of Athens, Greece, on April 6, 2018. The area is famous for its great biodiversity, and has been characterized as a traditional protected settlement and attracts thousands of nature lovers, as well as biologists every year. (Xinhua/Marios Lolos)