CAPEL CURIG, UNITED KINGDOM - NOVEMBER 20:  Catherine, Duchess of Cambridge watches Prince William, Duke of Cambridge's as he abseils during a visit to Towers Residential Outdoor Education Centre on November 20, 2015 in Capel Curig, United Kingdom. The Towers is an outdoor education centre run by Wolverhampton Council providing adventure activities for children.  (Photo by Chris Jackson-WPA Pool/Getty Images)