Askja Caldera

Askja is a caldera located in the central highlands of Iceland, and it is the largest caldera in the Dyngjufjöll volcanic massif. The caldera is about 50 km2 in area and has a lake that occupies it, with rugged peaks surrounding it. Askja is an active volcano, with the last eruption occurring in 1961. The area is known for its unique geology and has been used by NASA for training astronauts. The caldera is also home to several other volcanic features, including the Öskjuvatn caldera and the Kollur caldera. The area is remote and only accessible for a few months of the year, but it offers a unique and fascinating landscape for visitors to explore