The weird landscape of the Haukadalur Valley in Iceland's southern lowlands, where hot springs spout and mud pools bubble, has been dominated for centuries by the 'granddaddy' of all geysers, the Great Geysir, from which all other such phenomena around the world have gained their name. The Geysir, once shooting boiling water hundreds of feet into the air, has reduced its performance levels somewhat in modern times but is nevertheless still an impressive sight when it occasionally erupts. The rest of the thermal area, bathed in a sulphuric smell, is just as fascinating, featuring several other spouting vents and geysers which frequently display their prowess. The Geysir area has become a very popular tourist attraction, and a centre has been opened containing a multi-media geology museum and folklore exhibits. There is also a hotel, souvenir shop and restaurant on site.

Address: Geysir Center, Geysir

Website: www.geysircenter.com

Transport: Situated on the Golden Circle tour route, or drive yourself.

Admission: Free