Château d'Ishiwakijo

Ishiwakijo is a mountain fortress ruin located in Shizuoka Prefecture on steep terrain. The site incorporates stone walls and multiple defensive levels built at different elevations to take advantage of the natural slopes.

Built in the 15th century during the Sengoku period, the fortress served as a strategic observation post along important travel routes. It played a role in regional power control during this time of feudal conflict.

The castle design follows traditional Japanese mountain fortification principles, incorporating local stone materials and architectural techniques of medieval Japan.

The site is set up for hiking with marked paths that connect the various levels and guide visitors through the ruins. Comfortable walking shoes are essential since reaching all sections requires steep climbs and descents across the terrain.

On clear days, visitors can spot Mount Fuji from the highest point of the ruins stretching across the distant horizon. These clear views provide a rare glimpse of one of Japan's most iconic peaks from a historical vantage point.

GPS coordinates: 34.88864,138.32419

Latest update: December 14, 2025 14:27