The starting point of Section 5 of the Hong Kong Trail is located near Wong Nai Chung Reservoir Park. Wong Nai Chung Reservoir was completed in 1899 and once served as a supplementary water source for the Tai Tam Group of Reservoirs, further expanding the facilities for storing water on Hong Kong Island. Since the 1980s, Wong Nai Chung Reservoir has no longer been used for storing drinking water and was converted into the current Wong Nai Chung Reservoir Park by the former Urban Council. Now open to the public, it is managed by the Leisure and Cultural Services Department. From the starting point, walk about 550 m along Tai Tam Reservoir Road to reach the entrance of the Wilson Trail and Hong Kong Trail. Although Section 5 of the Hong Kong Trail is only 4 km long, it features significant elevation changes. Following the trail, after reaching the junction of trails towards Siu Ma Shan and Tai Fung Au, continue in the direction of Tai Fung Au, and you will soon reach the summit of Mount Butler. Standing at the Mt. Butler Viewing Point, hikers can enjoy panoramic views of the Tai Tam Upper Reservoir and Violet Hill, as well as distant views of the bustling commercial districts on both sides of Victoria Harbour. After a short rest, continue down the path to Tai Fung Au, where you will reach the endpoint of Section 5 of the Hong Kong Trail.

_{To facilitate the public in planning their hikes, the geographical information of the route, including the route map, starting point, endpoint, and elevation chart, has been saved in a "GPX" file. The public can download hiking-related applications on their smartphones or smart watches, then click on the following "GPX" file to import the relevant information, which serves as an aid for hiking. Please note that downloading "GPX" files may increase data usage, and the functions and content display may vary depending on the device and application used.}