Kat O is the biggest island in the northeast New Territories. Characterised by a curvy shape and deep bays, it is a natural shelter, reflected in its name, which means Lucky Harbour. Kat O takes pride in its long history and rich heritage, and there are many cultural heritage sites to explore. Once an economic hub in the Mirs Bay region, Kat O remains a scenic island with many sites of natural beauty. Indeed, it is celebrated as the “Pearl of Mirs Bay”.

The Kat O Heritage Trail is centred around Kat O Main Street and goes to various heritage sites on the island. The trail is generally level. The paths forms two branches, one leading to a lookout at Ko Tei Teng and another to Ko Pang Teng. The former offers distant vistas of Yantian, Shenzhen, and other regions in the north; the latter offers a view across the lyrical Double Haven in the south. There are 27 interpretation panels along Kat O Heritage Trail. Scan the QR code on the panel to listen to stories told by the villagers and geopark guides.

For details of the Kat O Heritage Trail, please visit https://www.geopark.gov.hk/en/discover/attractions/detail/kat-o-heritage-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.}