Japan, a country of islands, extends along the eastern or Pacific coast of Asia. The main islands, running from north to south, are Hokkaido, Honshu (or the mainland), Shikoku, Kyushu, and Okinawa, which is about 380 miles southwest of Kyushu. About 3,000 smaller islands are included in the archipelago. In total land area, Japan is slightly smaller than California. About 73% of the country is mountainous, with a chain running through each of the main islands. Japan's highest mountain is world famous Mt. Fuji (12,385 feet). Since so little flat area exists, many hills and mountainsides are cultivated all the way to the summits. As Japan is situated in a volcanic zone along the Pacific deeps, frequent low intensity earth tremors and occasional volcanic activity are felt throughout the islands. Destructive earthquakes occur several times a century. Hot springs are numerous and have been developed as resorts.

Temperature extremes are less pronounced than in the United States since no part of the interior is more than 100 miles from the coast. At the same time, because the islands run almost directly north-south, the climate varies considerably. Sapporo, on the northern island, has warm summers and long, cold winters with heavy snowfall. Tokyo, Nagoya, Kyoto, Osaka, and Kobe, in central and western parts of the largest island of Honshu, experience relatively mild winters with little or no snowfall and hot, humid summers. Fukuoka, on the island of Kyushu, has a climate similar to that of Washington, DC, with mild winters and short summers. Okinawa is subtropical.