The Nix
A Nix is a water creature which is able to transform into many shapes, most often to deceive humans to take them back into the water with it. The only thing that will help you if caught by a Nix is to call its name.
One tale tells a story of the Nix. One day, as children from Sørvágur had gone down to the lake to play, they encountered a beautiful horse. Two of the older children jumped on its back, and the horse began to trot towards the lake. The youngest of the children, who was too small to jump up, was jealous and wanted to go with them. He shouted to his brother Nick, who was on the horse, and asked him to wait for him. Being young and unable to pronounce his brother’s name, he shouted “Brother Nix, brother Nix, wait for me!” Upon hearing its name, the Nix transformed back into its original shape and jumped into the lake, and thus the children were saved.
Park on the gravel road by the water. If you stand between the horse and the cairn (with your back facing the horse), you will be looking at the cache.