3 Best Sights in Vatnajökull National Park–Jökulsárgljúfur, North Iceland

The "Echo Cliffs" is an extraordinary labyrinth of rock formations, located on the west side of Jökulsárgljúfur canyon off Route 862. There are two trails from the parking lot to this remarkable attraction: one is a short (1-km [½-mile]) there-and-back path leading to a magnificent rock named The Troll, and another longer trail (3 km [2 miles]) takes a ring around the areas and is more challenging. The name of the attraction comes from the honeycomb textures of the rocks, which act as sound processors amplifying the reverberating sound of the river.

An extraordinary episode of nature can be found at Hólmatungur where unique rock formations frame a verdant, well-vegetated oasis bustling with cascading waterfalls and clear-water springs. Hólmatungur is accessed via Route 887. Nordic Natura offers drop-offs and pickups for those wishing to hike in the area.

The trail to this remarkable row of red scoria craters starts from the parking lot just past the Vesturdalur campsite—don't be confused by the popular site in Heiðmörk near Reykjavík with the same name. The footing can be tricky in places, but otherwise it's not too challenging. The rocky path winds enchantingly through remarkable basalt structures with unusual natural patterns.