Kowloon is an urban area in Hong Kong made up of Kowloon Peninsula and New Kowloon. It is located north of Hong Kong Island and south of the mainland part of the New Territories. It is surrounded by the Lei Yue Mun strait in the east, Mei Foo Sun Chuen and Stonecutter's Island in the west, Tate's Cairn and Lion Rock in the north, and Victoria Harbour in the south. Kowloon land extends north from the waterfront far as Mongkok Boundary Street and covers approximately 12km². But over the past 150 years area of the city became four times bigger than its original one. It is almost 47km² or over 4% of the total landmass. This land reclamation and encroachment of the New Territories is now known as New Kowloon.
Over the past century Kowloon bay also has undergone massive reclamation. San Po Kong was reclaimed from the bay in the early days and today it is far from the coast. The eastern part is also now covered with the sea by breakwater, and forms a typhoon shelter i.e. Kowloon rock. So now by land reclamation, the Channel rock is connected to Kai Tak International Airport runway and To Kwa Wan is connected to the Hoi Sham Island.