basalt columns create unique formations and arched caves at vesturdalur, asbyrgi, northeast of iceland, europe

arched asbyrgi background basalt beautiful canyon caves cliff column erosion formation formations geological geology gorge hexagon hexagonal hiking hljodaklettar iceland icelandic jokulsargljufur landmark landscape lava national natural nature north northern panorama park rock sculpture spectacular stone summer sun sunrise sunset texture travel unique valley vatnajokull vesturdalur volcanic volcano wilderness wonder