Great British Railway Journeys

Criccieth to Caernarfon

Series 9, Episode 15

Available for 21 days

In Snowdonia, Michael Portillo braves the fastest zip line in the world - 1,500 feet across a quarry - as he begins the last leg of his journey to Caernarfon.


Series 7 episode 4 on at 8pm Saturday on Yesterday