Bláhylur, or Hnausapollur as it is also called, is a maar that formed and erupted about 11 thousand years ago. The name Bláhylur, translating to Blue pool, an allusion to the turquoise blue colour of the water.
Bláhylur is located in the highlands near to road Fjallabak Nyrðri. Make sure to stop by if in the area. Stunning photo by Fernando Puente.