Krýsuvíkurbjarg/Krýsuvíkurberg are renowned bird cliffs with thousands of Icelandic sea birds like arctic terns, puffins (fratercula arctica), fulmars and more.
About 63 000 pairs of birds were counted there shortly before 2014. The cliffs, which can as well reached on foot, are also a window in the geologic past. The lava flows covering the area came mostly from the crater up on Geitahlíð tuya, from the neighbouring Brennisteinsfjöll volcanic system.
Krýsuvíkurbjarg or -berg is protected as part of Reykjanesfólkvangur. To reach the sea cliffs you must drive a jeep track that runs down to the sea from Krýsuvík and Route 427.