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Sunny Bay (Chinese: 欣澳; Cantonese Yale: Yān ou) is an MTR station in Yam O. It is between Tung Chung and Tsing Yi stations. The station is an interchange station between the Tung Chung Line and the Disneyland Resort Line to Hong Kong Disneyland. The station was originally to be named Yam O (陰澳). Yam O was not used probably because of its ominous connotations (Cantonese Yam is more commonly known to English speakers as Mandarin yin, which means darkness or a negative quality.

Yam O (Chinese: 陰澳) is a bay located on the northeast shore of Lantau Island, in the New Territories of Hong Kong. It is part of the Ma Wan constituency of the Tsuen Wan District Council. Yam O was the only natural lumber preservation zone in Hong Kong. Even today, travellers passing through Yam O can see natural lumber on stilts in the bay.

Luk Keng Village or Luk Keng Tsuen (Chinese: 鹿頸村) is a village located on the Yam O peninsula on Lantau Island in the New Territories of Hong Kong, which links to Cheung Sok, a nearby uninhabited island, via a sandbank. From the Luk Keng Pier there a kai-to transportation service to Tsing Lung Tau in Tsuen Wan.

Luk Keng Pier (Chinese: 鹿頸碼頭) is a small public pier adjoining Luk Keng Village, Yam O, Lantau Island, Hong Kong. There is only a kai-to ferry route to and from Tsing Lung Tau in Tsuen Wan for villagers to travel to the urban area. This closed transportation relationship between Yam O and Tsing Lung Tau explains why Northeast Lantau is part of the Tsuen Wan District, instead of the Islands District.