Valahnúkamöl is a unique 420-meter "beach" on the Reykjanes Peninsula in Iceland, made up of oval boulders that look like they were placed there by Icelandic trolls. It's like a troll's playground with rocks ranging from 30-90 cm in size. To get there, just take a stroll around Valahnjúkur from the car park, and you're in for a cool and quirky experience!