Iceland's incredible 246ft-long geothermal ocean-side 'infinity edge' wellness lagoon is now open (with volcano views) The Sky Lagoon is located at Karsnes Harbour, just a few minutes' drive from Reykjavík's city centre Iceland is one of the 'green list' countries recently announced by the UK Government Tickets for the lagoon start from £48 (8,500 Krona), with various entry slots available seven days a week