Hong Kong is perhaps the BEST major city for urban hikes.

But — what if you try to run them continuously?

Hong Kong Four Trails Ultra Challenge (Chinese: 香港四徑超級挑戰), or HK4TUC (Chinese: 四徑; lit. ‘Four Trails’), is an annual ultramarathon race in Hong Kong. (Begun 2012.)

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 …

Four Trails (Chinese: 香港四徑大步走) is a 2023 Hong Kong documentary film directed by Robin Lee.

As I post it’s available to watch free on Tubi.

Click PLAY or watch it on YouTube.