According to the Environmental Agency of Iceland, walking on the lava is forbidden and can be very dangerous. The top layer can easily break when stepped on, causing hazards to people. The lava at Fagradalsfjall Volcano is a unique geological monument that we must respect and protect. It is important for visitors to leave no traces such as throwing stones at the lava or making inscriptions on it. Lavas are under special protection according to art. 61 of the Nature Conservation Act. One of the biggest risks of walking on new lava is breaking the top layer over an unknown lava tube. Falling into a lava tube that's still several hundred degrees Celcius can lead to injuries.