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Otaru: North Canal and Minato-cho waterfront

BOTTLE DIGGING GRAY AREA INFERRED

Where: Japan · Asia · approx. 43.2, 141.0 (vicinity only)

Why this spot: Herring and coal boom port of Meiji-Taisho Hokkaido; lighterage canal finished 1923, North Canal keeps the working width

What turns up: surface sea glass and brick frags at harbor margins, warehouse architecture

Access: Gray area.

Public promenade, look but do not dig; the canal is a working waterway with no accessible foreshore, and any buried artifact in Japan must be reported under the Cultural Properties Protection Law

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Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.

Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.