together since...
For: seniors contest
For: nature in black and white contest
For: weathervane contest
For: upview 2018 contest
Due to variable algal concentrations, vivid colors – from pale green to bright red – are created in the evaporation ponds. The color indicates the salinity of the ponds. http://ot-aiguesmortes.com/salins-daigues-mortes/?lang=en