Strytan | Iceland’s Hydrothermal Chimney Dive

Site Overview

Strytan is the only geothermal hydrothermal chimney system in the world accessible to recreational divers, making it one of the most unique dive sites on Earth. Off Akureyri in Eyjafjörður, Big Strytan rises from 65 metres to 15 metres, constantly venting 72°C alkaline water that builds a magnesium-rich white cone coated in bizarre thermophilic bacterial mats and tiny invertebrates. Little Strytan is a shallower, equally otherworldly cone at about 20 metres. Wolf-fish, cod and huge lumpsuckers gather around the structures. Water is 3 to 10°C and a drysuit is mandatory, with moderate current and the heat demanding respect and authorised guides. For divers seeking a truly one-of-a-kind experience, Strytan is unforgettable—a living hydrothermal vent in the cold North Atlantic, guided and strictly managed for safety. The site is a rewarding but demanding cold-water dive that rewards preparation, good buoyancy and respect for the Icelandic environment. The site is a rewarding but demanding cold-water dive that rewards preparation, good buoyancy and respect for the Icelandic environment. The site is a rewarding but demanding cold-water dive that rewards preparation, good buoyancy and respect for the Icelandic environment. The site is a rewarding but demanding cold-water dive that rewards preparation, good buoyancy and respect for the Icelandic environment. The site is a rewarding but demanding cold-water dive that rewards preparation, good buoyancy and respect for the Icelandic environment.