Episode 9

Expedition Japan Hot Stuff! Peter takes a bath in a pool of volcanic mud, Simon is buried up to his neck in scorching sand (a recognised cure for hysterics!) and Sarah boils an egg in a hellpool where the water bubbles at 176°F! The setting is Beppu in southern Japan where the town lives in the shadow of one of the world's most dangerous active volcanoes: Mount Aso.

The show’s own verdict is on its page.