A world carved from crystal blue, the aptly named Blue Ice Cave is like tumbling into a fairytale. This ancient frozen mass has captured centuries of light and can be found at the end of a glorious hike across glacial landscapes. Inside the Blue Cave frozen ocean hues sparkle and sing, volcanic ash ripples in surreal patterns, and lost stories remain locked behind cold walls. True to its name, Iceland sparkles with hundreds of glaciers making hiking a whole new experience.