Canyons

England

Jurassic Coast and Cornish tin mines - Cheddar Gorge is visited.

Iceland

The Vulcanologist's Dream - Fjadrargljufur gorge is visited.

Morocco

The Trilobite's Sahara Kingdom - Tohdra Gorge is visited.

OMAN

Ocean Crust and Mountains of Mantles - visits the Grand Canyon of Arabia

USA

Yellowstone, Dinosaurs and Grand Canyon -  Both The Grand Canyon is visited and  The Grand Canyon of Yellowstone are visited.