Colorchallenge - Thursday Green

I shot these picture at Lanzatote with my One Plus 2 mobile. The crater of an extinct volcano submerges into the Atlantic ocean forming a lagoon known as the Charco de los Clicos (Green Lagoon). Its green colour, caused by the algaes at the bottom, contrasts with the blues of the sky and sea and the black sand on the beach known as El Golfo which is just 100 metres from the lagoon.