The great waterfall Dynkur is a hidden treasure in the unique Icelandic nature. It's located in the south rim of the central highlands in river Þjórsá, what is Iceland's longest river. On that picture we just can see a part of that huge waterfall that's over all about 750m long system of waterfalls. I was there yesterday in a perfect weather and conditions for photography. The waterfall is hard to find and hard to get there, but it's worth it.