Japan, Hokkaido
Otaru
Tidal foreshore Source-confirmed findsGray area
What you could find
Reported finds from this shoreline.
Old bottles
Sea potteryAlso reported: trade glass.
Photos via Wikimedia Commons: Sheila Sund (CC BY 2.0), NPS (Public domain).
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Why this spot
Victorian bottle era, historically mapped
Booming Meiji Hokkaido port with a stone-warehouse canal district; late but dense debris.
Keep exploring nearby
More spots in this area.