Hobashiraishi Stones in Najima

The Hobashiraishi Stones stand as tall formations along the coastline of Hakata Bay, displaying mineralized patterns that mark their transformation from ancient trees.

These geological formations originated approximately 35 million years ago when mineral-rich waters gradually replaced the organic material of trees with stone.

The name Hobashiraishi translates to mast stones, referring to their vertical structure that resembles the masts of ships rising from the water.

The stones remain accessible throughout the year, with educational signs in multiple languages providing detailed information about their geological formation process.

These petrified wood specimens serve as research locations for scientists studying tsunami patterns and coastal geological changes in the Hakata Bay region.

Location: Higashi-ku

Inception: 35 million years BCE

Address: 福岡県福岡市東区名島1-27

GPS coordinates: 33.64525,130.42144

Latest update: March 11, 2025 12:22