{"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":-65,"n":15,"e":-60},"res":0.05,"W":100,"H":100,"n":558,"cells":"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"}