Signal Hill Battery overlooks Hong Kong Harbour and was certainly used as a Saluting Battery during the inter-war years. It is not know if it was ever a fully functioning coastal defence battery. For some time it was called Blackhead Fort.
The small hill, overlooking the harbour, made it ideal as a signal station (Hong Kong Observatory) to any vessels moored in the harbour. It was therefore used as a signal station, time ball location and typhoon warning post.
The site is now a garden, but reclamation has now placed it more than 50 metres from the shoreline.