The name Golden Circle might be a tourist-industry tag, but it’s also apt, as this broad circuit east from Reykjavík covers many of Iceland’s best-known features and touches on the root of much of its history. The key area is Þingvellir, whose dramatic and geologically unstable rift valley marks where the Icelandic state sprang into being in Viking times. South from here is the religious centre of Skálholt, where Iceland’s last Catholic bishop was assassinated in 1550; while travelling northeast takes you past the spa town of Laugarvatn to Geysir, the original hot blowhole that has lent its name to similar vents worldwide, before sealed roads end on the edge of Iceland’s barren interior at Gullfoss’ thundering twin cataracts.

The tangle of routes connecting all this together runs through beautiful countryside: fertile, flat, framed by distant hills and – if you’ve spent any time in Iceland’s rougher areas – startling green in summer, thanks to one of Iceland’s longest rivers, the Hvítá. This originates around 140km northeast at Hvítarvatn, an isolated lake below Langjökull on the Kjölur route, and flows swiftly to Gullfoss, where it drops into the plains above Skálholt before running south to the sea.