Largely within Friðland að Fjallabaki (Fjallabak Nature Reserve) the high-temperature region Torfajökull comprises six geothermal areas:
and some smaller spots at Strútslaug and at the volcano Torfajökull itself.
Besides rhyolite mountains in nearly unbelievable colors, most geothermal areas feature a huge variety of hot springs, mud pots and fumaroles. All are well-worth a visit, but in the end it is often a question of accessibility. For example, the hot spring site Háuhverir at Jökulgil canyon in the Kaldaklof area is very interesting, but also quite remote. The same is true for Vestur-Reykjadalir, parts of Austur-Reykjadalir and most of the other areas. In the summer months the public-transit bus or four-wheel-drive vehicles are the only options on the unpaved roads F 210 to Mt. Laufafell or F 208 and Landmannaleið road to Landmannalaugar. Cars with lower clearance may have problems to cross the unbridged rivers, especially the deep ford in front of Landmannalaugar. Hikers enjoy the Laugavegurinn (hot springs route) from Þórsmörk to Landmannalaugar. It crosses also Austur-Reykjadalir and some of its hot spring fields close to Mt. Hrafntinnusker where the geysers Stórihver (which means large hot spring) and Kátur (agile hot spring) are located. Lots of alternate hiking routes are available, but you have to bring time and a guide is recommended.
Lack of time at Landmannalaugar is also the reason for presenting geothermal features only of Landmannalaugar itself and nearby Brennisteinsalda here. Up until now, since its a place definitely worth to return in future.