Koyoshima
小与島
A remote island in the Seto Inland Sea known for its former granite quarries and abandoned hotel ruins.
What it is
- A small island in Sakaide City formerly centered on the granite quarrying industry.
- A nearly uninhabited location with only one household remaining as of 2020.
- An area designated by Japan Post as difficult for mail delivery.
- A landscape shaped by industrial history with numerous ponds created by quarrying activities.
What to see
- The ruins of the abandoned Hotel Aqua Koyoshima.
- Numerous ponds scattered across the island landscape from previous granite excavation.
- Views of the Seto Ohashi bridge which provides the island with water and electricity.
Getting there
- No scheduled ferry or public transport routes have served the island since 2006.
- Access requires hiring a chartered boat from ports such as Sakaide.
Notes written by Japan Gems from facts in Japanese Wikipedia.
Where it is
Koyoshima Open in Google Maps
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