Haukadalur is a valley that contains the largest and most famous Geysers in Iceland, including Geysir and Strokkur. Geysir is the earliest geyser known to Europeans and gave rise to the word Geyser. Eruptions at Geysir can hurl boiling water up to 70 meters in the air. Eruptions may be infrequent however, and have in the past stopped altogether for years at a time. At the moment Geysir erupts around 3 times per day. Strokkur, which is less than 50 meters from Geysir erupts every 10 minutes or so.