Crystal Ice Cave
The Crystal Ice Cave is a unique natural wonder located inside the Vatnajökull glacier. The cave's walls are made of translucent ice that glows in various shades of blue and turquoise, creating a surreal and otherworldly atmosphere. Visitors can take guided tours of the cave, which typically involve a short hike and some crawling through narrow passages.
Keep in mind that the caves in this glacier are formed and destroyed every summer, so there is no single permanet cave. All the caves throughout the years feature the same unique characteristics though, making it a great place to visit.