What is it? Athletes slide feet first. Four golds on offer via men's, two-man, women's and team relay. One of the most dangerous sports in the Games – in Vancouver Georgia's Nodar Kumaritashvili was killed in practice.
What do I need to know? This is tobogganing, albeit extreme tobogganing at speeds of 80mph.
Tell me something I don't know Austria's Lingers brothers are chasing a third successive gold in the two-man.
GB chances No qualifiers.
One to watch Natalie Geisenberger of Germany has won the last two World Cups.