The longest ice skating trail measures 29.98 km (18.63 miles) and it is the naturally frozen Lake Windermere Whiteway, in Invermere, British Columbia, Canada, as measured on 14 February 2014.
The Whiteway runs continuously along four loops that collectively span almost the entire length of the lake. During the 2013/2014 season, when the record was verified, the ice thickness ranged from 12 inches (30.48 cm) at the beginning of the season to almost 30 inches (76.2 cm) on the coldest days.