{"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":-20,"w":-150,"n":-15,"e":-145},"res":0.05,"W":100,"H":100,"n":347,"cells":"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"}