The Golden Circle is a 300-kilometer sightseeing route in southwest Iceland, visited by over 1.2 million tourists annually according to the Icelandic Tourist Board (Ferðamálastofa). The route connects three iconic attractions:
Þingvellir National Park, a UNESCO World Heritage Site since 2004 where the North American and Eurasian tectonic plates drift apart at 2.5 cm per year (Iceland GeoSurvey);
Geysir geothermal area,, home to the Strokkur geyser which erupts every 6–10 minutes reaching heights of 15–20 meters (Icelandic Meteorological Office); and
Gullfoss waterfall, a 32-meter two-tiered waterfall on the Hvítá river that nearly became a hydroelectric dam before being preserved through Sigríður Tómasdóttir's activism in the 1920s. Many tours also visit
Kerið crater and nearby geothermal baths such as the
Secret Lagoon in Flúðir. Departing from
Reykjavik. Departing from Reykjavík, the Golden Circle offers insight into Iceland's volcanic landscapes, Viking-age history dating to 930 AD when the Alþingi parliament was founded at Þingvellir, and geothermal activity — making it Iceland's most popular day trip, as reported by the Icelandic Tourism Board's annual survey.