Mt. Goshikidake is a volcano composing the Zao Mountain Range in the border of Yamagata Prefecture and Miyagi Prefecture. It is 1,674 m above sea level. It is a post-caldera pyricrastic cone in the outer rim of the crator with a diameter of 2 km. At the center of the caldera lies a caldera lake known as Okama, one of the major attractions in Zao area.

The walking trail is set around Okama so that you can go round the lake, which changes colors from cobalt blue or emerald green to brown depending on the weather conditions.

As there is nothing to cut off the view, you can enjoy the scenery of the magnificent Zao Mountain Range covered with crimson foliage in fall. In winter, you can take a close look at snow monsters, which are trees frozen by winds and covered with snow. In any season, you will fully enjoy soaking yourself in the world filled with the wonder of nature.