Winter sports magazine. Graham Bell travels from Zermatt to St Moritz on the Glacier Express, which crosses 291 bridges and goes through 91 tunnels. Graham also accompanies Ed Leigh to New Zealand, where the pair discover one of the more bracing winter activities when they go diving under a frozen lake in New Zealand. Comedian Marcus Brigstocke becomes the latest celebrity to tackle a giant slalom course in the Ski Sunday challenge.