Tackle the fearsome and relentless Côte de Park Rash just a few hours before the TdY peloton. Official UK Climbs #45. It gets slightly easier after the two 25% hairpins, but there are several more steep sections following, before the final climb bites at 20% with just 500 metres to go.
Look out for Dave Brailsford sitting down reading the newspaper just after you start the KOM climb. The large overhanging limestone rock face near the start of the ride is called Kilnsey Crag, a popular challenge for rock climbers.