When I first visited Skælingar, I was fascinated by the place. You can find these unique lava formations in other areas, and it is always worth stopping and taking pictures. The lava formations formed when lava flowed from Eldgjá. Blockages formed in the lava flow, and a large amount of lava then accumulated in ponds. Usually, the blockages break away reasonably quickly. In Skælingar, the clogs have cooled quicker than the lava in the pond, probably due to accumulations with a different coagulation process. These lava plugs remained, but the lava from the pond continued to flow.