Geysir
The world-famous Geysir (from which all other geysers get their name), shoots boiling water and steam 100 feet in the air when it erupts every few months. From Þingvellir, the first stop in the Golden Circle, continue east on Route 36, turn left on Route 365, and turn left again on Route 37 at Laugarvatn. At the end of Route 37, turn left and take Route 35 northeast to Hótel Geysir, which is next to the hot springs.