Sado: Sawada beach, Kawaharada

Where: Japan · Asia · approx. 38.0, 138.32 (vicinity only)

Why this spot: Town-front beach on Mano Bay below Kawaharada, a merchant town of gold-rush Sado on the kitamaebune coastal shipping run

What turns up: sea glass, sakura shells, pottery shards

Access: Open / legal.

Municipal bathing beach; picking drift glass and shells is unrestricted

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