A unique area in northern Iceland is home to one of the larger lakes. Around lake Myvatn, you can see (and hike) the Skútustaðir pseudo craters - created when lava flows over wet ground and pushes the ground down. This causes a lot of steam (and pressure) to be trapped under the weight of the lava. When it becomes too much it causes explosions and the formation of these beautiful pseudo craters. Everything here is black volcanic ash, covered in some grass and flowers.