One of the biggest attractions in Iceland which geological studies suggest began to form about 1150 AD. Geysir, sometimes known as The Great Geysir, is a geyser in south-western Iceland, that has actually stopped erupting (last erupted in 2016 but is still technically active) but remains one of the most famous hot springs in Iceland. Luckily, it's neighbour, Stokkur, is still going off every 6-10 minutes.

Fun fact: The English word geyser (a periodically spouting hot spring) actually derives from Geysir. The name Geysir itself is derived from the Icelandic verb geysa which means "to go quickly forward".

QUICK NOTES:

• What it is: A hot spring (not to be entered) that used to be the most famous geyser in Iceland.

• Best season: Any.

• Best time of day: Any.

• Nice to know: Geysir itself is actually no longer active, but the nearby Strokkur geyser erupts about every 6-10 minutes.