From housing estates to hiking trails, the two-month 'Keep Clean 2015 @ Hong Kong: Our Home' campaign sought the active participation of every resident to take hygiene to new heights. Here, cleaners go about their work at Quarry Gap.

The Chief Secretary for Administration, Mrs Carrie Lam, officiates at the launch of the 'Keep Clean 2015 @ Hong Kong: Our Home' campaign with other government officials in Kowloon Park Sports Centre on August 1.

The Chief Secretary for Administration visits Sham Shui Po to inspect 'three nil' buildings, which do not have owners' corporations, residents' organisations or property management companies.

Hosing down a public area at Kau Sai San Tsuen, Sai Kung.

Clearing the seabed of rubbish off Sharp Island, Sai Kung.

Preventing and controlling mosquitoes at Tai O, Lantau Island.

Cleaning the shoreline at Lap Sap Wan, Shek O.

Removing miscellaneous items from a bicycle parking space in Ma On Shan.

Washing a private lane off Shek Pai Wan Road, Aberdeen.

Unclogging a drain in Sham Shui Po.

A bus parade in Sham Shui Po on its way to distribute cleaning packs.

Students take part in a Clean My Own School programme at Yau Yat Chuen.
(Photo courtesy of Our Lady of the Rosary College)

The campaign message goes out to beach-goers in Southern District.