Saigon, with the World Geopark (second to the United Nations World Natural Heritage Site) and the Meriho Trail, which is liked by outdoors, is 100 kilometers long. The first, second, third and fourth sections of the essence are all in Saigon, among which the third and fourth sections are very physically exhausting, because they need to be re-equipped and there are basically no supply points along the way. I left the other day.