Víti
On the other side of a narrow ridge from Öskjuvatn lake, Víti (meaning “hell”) was formed during the same 1875 eruption. With its milky-blue warm water, it's both a visual treat and a potential opportunity to take a dip in a geothermal pool of mineral-rich water. The trail down to the water is steep and can be slippery, so exercise caution and ask the local park rangers if the water is suitable for bathing—in recent times its acidity level has been high and its temperature on the cool side. Beware of gravel and rocks falling from the sides. The hike to the Víti crater is around 3 km (2 miles) from the Vikraborgir car park, along the same trail leading to Askja and Öskjuvatn.
