The Aberdeen Reservoirs consist of the Upper Aberdeen Reservoir and the Lower Aberdeen Reservoir.  The Lower Aberdeen Reservoir, which was constructed first, was formerly privately owned by Tai Shing Paper Manufacturing Company.  Apart from the substantial amount of water required for papermaking, the reservoir, under an agreement with the government, supplied 60 gallons of water daily to the residents of southern Ap Lei Chau until the 1920s, when it was bought at 460 thousand dollars and expanded by the government to solve the problem of water shortages due to rapid population growth in the district. The water holding capacity doubled after the expansion. The Lower Aberdeen Reservoir, which is over a hundred years old, is a declared monument today. Completed in 1931, the Upper Aberdeen Reservoir was the last reservoir built on the Hong Kong Island, with its main dam and the massive logo of the masonry bridge under the dam being a must-visit photography spot for hikers. The Upper Aberdeen Reservoir and the Lower Aberdeen Reservoir are spanned by Aberdeen Nature Trail, which offers panoramic views of Aberdeen and the typhoon shelter.