Where: Japan · Asia · approx. 34.41, 133.2 (vicinity only)
Why this spot: Official port from 1169 (tax-rice shipments), kitamaebune boomtown from 1672, Seto Inland Sea trade channel
What turns up: sea glass, glazed pottery shards at slipway margins
Access: Gray area.
Public seafront promenade; casual surface glances at low-water rubble are tolerated but there is no formal foreshore access, and buried relics fall under the Cultural Properties Protection Law reporting duty
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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.