Amy Williams joins Ski Sunday 120kph mono bob challenge

The Ski Sunday team heads to St. Moritz to take on the world famous bobsleigh track with a little help from Olympic gold medallist Amy Williams.

Presenters Ed Leigh and Graham Bell travel at speeds of up to 120kph in a thrilling challenge with the Vancouver 2010 skeleton champion.

Watch Ski Sunday on BBC2 17:45 GMT on Sunday, 3 February.