Stage: Hrafntinnusker – Álftavatn Distance: 11 km. Walking time: 5-7 h. Accumulated elevation gain: positive 150 m/negative 650 m. We continue to Jökultungur between solfataras and mud pools, which is one of the three points with the highest geothermal activity in the world. We will see the Mýrdalsjökull and Eyjafjallajökull glaciers, to finish next to the Álftavatn lake and enjoy the area.