A three-pounder Hotchkiss gun on the waterfront in Causeway Bay, the Noonday Gun has been fired every day at noon since at least the 1860s — one of Hong Kong's oldest and most reliably performed rituals. Noel Coward immortalised it in his 1924 song "Mad Dogs and Englishmen" ("In Hong Kong, they strike a gong, and fire off a noonday gun").
The gun is kept by Jardine Matheson in a small enclosure near the Excelsior Hotel. At noon exactly, a uniformed employee fires it. The surrounding area is a busy waterfront promenade, and the gun gives you an excuse to wander the Causeway Bay harbourfront, which also has good views of the harbour and the Typhoon Shelter filled with pleasure boats.