{"generated":"2026-10-19","source":"OpenStreetMap natural=reef / natural=shoal / natural=coastline (coarse warning layer)","licence":"ODbL 1.0","attribution":"© OpenStreetMap contributors, Open Database License (openstreetmap.org/copyright). Derived database: docs/launch/odbl/.","block":{"s":55,"w":-70,"n":60,"e":-65},"res":0.05,"W":100,"H":100,"n":700,"cells":"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"}