The country consists of a peninsular protruding from southeastern China and hundreds of islands scattered off the coast.
Kowloon and the New Territories make up the peninsular, while south off the mainland is Hong Kong Island and various other remote islands.
Deep waters surround Hong Kong, and with its wide harbors protected by mountains in the north and south, the region is favorable as a passing point for ships.
Its geographical location between the Taiwan Straits, the South China Sea, and the Pacific Ocean make it a strategic channel for sea traffic in Asia and the world.
Hong Kong is a small-sized island covering 1,095 sq. km (423 sq. miles). However, there are currently many reclamation projects at hand, thus expanding the land area.
Hong Kong never used to be as big as it is now. From 1851 to 1997, the total area of land reclaimed from the sea measured to 60 sq. km (23 sq. miles).
In area, the island of Hong Kong is 80 sq. km (31 sq. miles), Kowloon peninsular is 47 sq. km (18 sq. miles), the New Territories is 794 sq. km (306 sq. miles), and the remote islands total 175 sq. km (67 sq. miles).
Hong Kong stands on volcanic terra firma, with its landscape dominated by hills and mountains. A crest lining from the northeast to southwest forms the backbone of Hong Kong.
Kowloon peninsular and the northwestern New Territories are mainly flat areas.
Three percent of Hong Kong's total land area is agriculturally cultivated and this is mostly at the New Territories large alluvial plains.
A narrow piece of flat land between the mountains and the sea along the north shore in Hong Kong is vacated by most of the country's population, whereas the south shore has luxury residential buildings and some nice beaches, such as Stanley and Repulse Bays.
There is a tunnel that was built through the mountains, which links the north and south shores.
The highest peak is Ta Mo Shan, located in central New Territories at 957 meters (3,140 ft) above sea level, while the lowest is Lo Chau Mun at 66 meters (217ft).
Victoria Peak, or 'The Peak', is only 552 meters (1,811ft) but its spectacular view of Victoria Harbour, Kowloon, and the Central and Wan Chai strip of Hong Kong Island has made an international reputation for itself.
In total, there are about 234 outlying islands in the country, with the island of Hong Kong being the most famous and populated.
Even then, Hong Kong is not reputed to be the largest island around. Lantau Island is by far the biggest of Hong Kong's islands. It has now surfaced from its remoteness to becoming the site of the new, high-tech Chek Lap Kok international airport.
Although Hong Kong dwells on volcanic plains, there are only minor seismic activities, occasionally causing tremors.
To date, no major earthquakes have been reported, but the last that occurred in the region was back in 1874, with a magnitude of 5.75 on the Richter scale, which caused only minor damages.