Two thirds of the prefecture is mountainous, with mountains ranging across the northwestern Prefectural boarder. The prefecture is blessed with a rich variety of nature such as; mountains 2,000 meters high, the marshlands of Oze, many lakes, and the Tone River's clear stream.

Gunma's plains, having a Pacific climate, see much rain in summer and little in winter. The mountainous regions in the north also get a lot of rain and snow, having a climate resembling that of the Japan sea side. The frequent occurrence of thunder in the summer and the strong winds in winter, known as 'The Dry Winds', are characteristic of the area.

Gunma is just an hour from Tokyo by the Shinkansen (bullet train). It is on the superb and beautiful natural areas of Oze, Mt. Tanigawadake, Mt. Akagi and others where visitors find peace of mind and delight in the perennial snow and the new growth in the spring and the glorious colors of autumn. 

Within the prefecture there is a great variety of hot springs such as Kusatsu, Minakami and Ikaho with an abundance of mineral laced waters. Gunma is one of the most popular prefectures for hot springs in Japan.
In these mountains and their nearby plateaus, golf, skiing, rafting and other outdoor activities can be enjoyed to the fullest throughout the year.