Yonago Castle Ruins: Diamond Daisen Viewing Event

Event Overview

Experience the awe-inspiring phenomenon known as "Diamond Daisen," where the rising sun over Mount Daisen shines with the brilliance of a diamond. This special viewing event takes place at the Yonago Castle Ruins, a designated National Historic Site. Once celebrated as the greatest castle in the San'in region, the ruins offer a profound sense of history alongside this mystical natural spectacle.

Highlights & What to Expect

The highlight is the moment sunlight streams directly from Mount Daisen, enveloping the Yonago Castle Ruins in a radiant glow, much like a divine halo. This breathtaking sight is why it is called "Diamond Daisen." You can enjoy a moment of pure serenity while surrounded by the ancient stone walls and the powerful energy of nature.

Schedule

The event is held on October 24 (and 25), 2026.

• *Sunrise**: Approx. 6:15 AM
• *Viewing Starts**: Approx. 6:30 AM

Venue & Access

The venue is the Tenshudai (Castle Keep Base) at the Yonago Castle Ruins in Yonago City, Tottori Prefecture.

• *Location**: Kume-cho, Yonago, Tottori
• *Access**: Approximately a 15–20 minute walk or a 5-minute drive from JR Yonago Station.

Practical Information for Visitors

Weather conditions are crucial for this event. To see the spectacular light, clear skies are necessary. Please be aware that reaching the Tenshudai requires about a 15-minute walk uphill. Since this is an early morning event, please prepare accordingly.

What to Bring & Etiquette

• *Clothing**: As this is an outdoor event in the early morning, please dress warmly to protect against the cold.
• *Payment**: This event is free of charge.
• *Reservations**: No prior reservation is required.
• *Etiquette**: Please respect the historic site and the surrounding environment while enjoying the view. For more details, please check the official website.