Wikipedia
Sundlaugin (, the swimming pool) is a recording studio located near Álafoss, in the town of Mosfellsbær in Iceland. It was converted from a drained, abandoned swimming pool built in the 1930s and adjacent buildings. It is owned by the post-rock band Sigur Rós.
The band originally intended to record their third album, entitled , in an abandoned NATO tracking base in the northernmost mountain in Iceland, but after inspection decided it was too impractical. Shortly after they found the abandoned pool lot in a rural neighborhood in Mosfellsbær. They bought the lot and transformed it into a studio. In order to fit the massive mixing console into the building, part of the roof was opened up and the console was lowered with a crane.
Much of the band's photography and artwork is taken from the surrounding landscape, such as the art found on the first album recorded in the studio, .
The recording studio has also been used for recording, mixing and mastering (usually assisted by the studio's sound engineer Birgir Jón "Biggi" Birgisson) by a wide group of other, mainly Icelandic, artists including Agent Fresco, The Album Leaf, Alcest, amiina, Amusement Parks on Fire, Andŕum, Beneath, Benni Hemm Hemm, Bubbi Morthens, For a Minor Reflection, Jakobínarína, Julianna Barwick, Kira Kira, Mugison, Múm, Ólöf Arnalds, Pétur Ben, Retro Stefson, Trevor Geir, Self Defense Family, Ske, Slowblow, Steindór Andersen, and Storsveit Nix Noltes.