Taiwan, often known in tea circles as Formosa, is an important producer of teas, especially oolong teas. Taiwan's territory is uniquely suited to the production of high altitude oolong teas. Situated off the southwestern coast of China and about halfway between Japan and the Philippines, Taiwan is located in a subtropical climate zone. The island sees both tropical weather from Southeast Asia during summer months and winter temperatures cold enough for snow on its highest mountain peaks like Yushan, Lishan, and Alishan. Taiwan's soil is extremely fertile. Farmers in many of the tea producing micro-regions also grow tropical fruits, aloe vera plants, and traditional vegetables like the delicious bitter melon. Taiwan is about one-third the size of South Korea, with a surface area of 14,000 square miles. Taiwan is home to more than 26,000 separate tea farms and produces a full spectrum of premium teas including white, green, oolong, and black.