Whether active, dormant or extinct, volcanoes are amazing testaments to Mother Nature's brute strength. Be a volcanologist for a day and explore the geological wonders of Krafla.
You'll have sightseeing choices galore when in Myvatn. Krafla is an ideal place to kick off here, but there are loads of other worthwhile places to experience. Lake Myvatn, Myvatn Nature Baths, and Dimmuborgir are near the geological phenomenon and and will cap off your day nicely.