{"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":10,"w":-20,"n":15,"e":-15},"res":0.05,"W":100,"H":100,"n":430,"cells":"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"}