Gullfoss Waterfall, Bláskógabyggð, Iceland.

Gullfoss means ‘golden falls,’ because on a sunny day the water appears golden-brown due to the sediment carried from its source, the glacial water of Iceland’s second biggest glacier, Langjökull. On bright days, you can see lots of rainbows. It is an extraordinary sight. Its average flow is 1400 cubic metres of water per second….