Hong Kong Four Trails Ultra Challenge

Hong Kong Four Trails Ultra Challenge, or HK4TUC, is an annual ultramarathon race in Hong Kong. Considered one of the most challenging mountain races worldwide, participants have to run through within 72 hours the famous quadruple hiking trails in Hong Kong known as "Four Trails": MacLehose, Wilson, Hong Kong, and Lantau. The ultramarathon spans a total distance of 298 kilometres with a cumulative elevation of 14,500 metres, starting from Tuen Mun and ends at the green post box outside Silvermin