Begin your Marathon journey at the Mývatn Nature Baths! We invite the whole family to join us for an unforgettable weekend filled with fun activities. Your registration fee entitles you to beer & BBQ, as well as a complimentary entry to the Mývatn Nature Baths.The course runs around Lake Mývatn on a flat asphalt pathway, with stunning views of the lake and volcanic landscape. The highest point of the course is 382m above sea level, with a total elevation loss of 177m and 191m elevation gain.