Air Raid Protection (ARP) tunnels were built in many parts of Hongkong Island and Kowloon during 1940-41, in the preparations for war. I've often seen the bricked up tunnel entrances at the start of Queens Rd East in Wanchai, but I didn't know there were still any around Kowloon park. Then a couple of weeks back I took a different route from usual to get into the park, and came upon these two entrances:
Here is the view through the bars of the further entrance:
Sure enough, these are entrances (the reports call them 'portals') numbers 10 and 11 to the K2A Canton Road tunnel network. The tunnels extended under what was then the Whitfield Barracks, joining up with the K2 Austin Road tunnel network. Kowloon Park now occupies the area where the Barracks used to stand - you can still see a few of the old barracks buildings along the South and Western edges of the park.
To see these tunnel entrances, walk from Canton Road through the Canton Road Playground (next to the school at 178 Canton Road), and you'll see them just after you exit the playground.