Geyser Strokkur .Island active geyser is the most visited Iceland. One of the three main attractions of the world-famous tour of the Golden Circle. Gold circuits ( “Circle Golden”) is a well-known path, which includes the best nature of Iceland. These include the national park “Thingvellir” geyser “Strokkur” waterfall “Gullfoss” .. Strokkur is the primary feature of the valley Haukadalur in south Iceland and the main reason why this is one of the most visited places in the country.