Davíðsgjá is a long, narrow fissure located within Lake Thingvellir. Divers access the site via a shore entry, followed by a 300-metre swim to reach the main fissure. The site features depths ranging from 7 to 21 metres. Conditions include mild currents and visibility that varies based on weather patterns. Water temperatures fluctuate seasonally between 6C and 12C, often remaining slightly warmer than nearby Silfra. Due to the cold water environment, this site is suited for intermediate divers. Parking facilities are available for visitors.

Silfra is a unique freshwater fissure located in Thingvellir National Park, Iceland, formed by the tectonic plates of North America and Eurasia drifting apart. This site features a rugged underwater landscape of rock walls and caves. Divers and snorkellers experience exceptional visibility reaching 100 metres in the glacial water. The site is accessed via a shore entry and involves a mild current. With an average depth of 10 metres and a maximum of 18 metres, the environment is suitable for intermediate divers. Water temperatures remain a constant 2 to 4 degrees Celsius year-round. Hazards include the cold water, overhead environments, and the presence of current.

Davidsgja is a freshwater dive site in Thingvellir National Park, Iceland, characterised by its underwater topography and overhead environment. Divers can reach depths between 15 and 21 metres, with visibility typically extending to 30 metres. The site features a mild current and requires a shore entry. Due to the cold water temperatures of 2 to 4 degrees Celsius and the overhead nature of the site, it is suited for intermediate divers with drysuit experience and overhead awareness. Guided tours are available for those visiting the site. The primary experience focuses on the geological structure of the fissure rather than marine life.