Senjogahara is one of the representative marshland in Japan. It is 400ha wide. Also, it is a treasure house of alpine plants such as Lonicera caerulea, cotton sedge, Polygonum bistorta, iris and Spiraea salicifolia. You can enjoy watching them from June to August. Also, Japanese larch, Quercus crispula Blume, Ulmus japonica and Malus Sieboldii grow gregariously around the marshland. Especially, SHIRAKAMBA white birch is a popular target among the photographers. Its nickname is "Noble woman of Odashirogahara plateau."

Many hikers visit Senjogahara plateau in alpine plant season. The Senjogahara plateau is not influenced by rainy season very much. Therefore, there are many sunny days in the plateau even if the central Nikko is rainy. You should check the weather for both central area and your destination.

Also, Senjogahara plateau becomes cross-country skiing area in the winter. There are various kinds of courses from the beginner to the expert. Koutoku is the starting point of each course. The Koutoku is located on east of the Senjogahara.