{"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":-25,"w":-45,"n":-20,"e":-40},"res":0.05,"W":100,"H":100,"n":314,"cells":"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"}