Hiking Across an Icelandic Volcano
John takes a hike across Hengilssvæðið (Hengill), the nearest active volcano to Reykjavik, with boiling springs and other geothermal features along its 140 km network of hiking trails.
Exploring Lava Tubes in Iceland
John journeys to the Center of the Earth down a lava tube in Iceland with the author of Icelandic Caves, Björn Hróarsson, as his group’s guide.
Iceland's Hot Stuff
Iceland is hot. Our September 2014 exploration of the country let us come face-to-face with steaming hot geologic features that are otherworldly in nature.
The First Public Walk in Britain: Calton Hill
One of the seven volcanic hills within Edinburgh, Calton Hill is an ancient cinder cone atop which the first public footpath in Great Britain was established, in 1775.
Curious about George in Santorini
Yes, I've hiked across a volcano, and a historic one at that: the cinder cone in the middle of the caldera on the island of Santorini, Greece.
Atop Ancient Akroteri
It is a tough climb to ancient Akroteri out of season, accomplished on foot through loose volcanic scree. But the view from the top, and the treasures to be found, make it worthwhile.
