Azores, a Portuguese archipelago, is a place of immense beauty. One example of the rare gifts that nature bestowed on Azores is the Lagoa das Sete Cidades (seven-cities lake) in the São Miguel island. It consists of a green and a blue lake located inside an ancient volcano.

According to a local legend, there was a princess with green eyes who fell in love with a shepherd with blue eyes. When the king did not approve their marriage, the princess and the shepherd cried and cried. Their love bore no fruit but their tears formed two adjacent lakes, one green and one blue.