The most commonly known lakes named after colours are the Blue and Green lakes in Rotorua. There are also 3 other lesser known blue lakes in Canterbury, Otago, and Tasman.The blue lake in Rotorua is...
The main river is Windermere but there are many more like Ullswater, Derwentwater and Bassenthwaite. Those 4 lakes are the biggest in the Lake district so I hope that is enough, if not, ask the...