{"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":125,"n":30,"e":130},"res":0.05,"W":100,"H":100,"n":299,"cells":"AAAAAAAAAAAAAAAAYAAAAAAAAAAAAAADAgAAAAAAAAAAAAAAOMAAAAAAAAAAAAAAAA4AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAmAAAAAAAAAAAAAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABgAAAAAAAAAAAAAAAGAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMAAAAAAAAAAAAAAAGAAAAAAAAAAAAAAAAYAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAAAAAAAYABAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADgAAAAAAAAAAAAAAA+AAAAAAAAAAAAAAAH4AAAAAAAAAAAAAAD/BAAAAAAAAAAAAAB4wMAAAAAAAAAAAAAPOBwAAAAAAAAAAAAA8wEAAAAAAAAAAAAAD/AAAAAAAAAAAAAAAPwAAAAAAAAAAAAAAA/AAAAAAAAAAAAAAADwAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAEAAAAAAAAAAAAACABwAAAAAAAAAAAAAAAFgAAAAAAAAAAAAAAAaAAAAAAAAAAAAAAABoAAAAAAAAAAAAAAADgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAD4AAAAAAAAAAAAAAAPAAAAAAAAAAAAAAAA4AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAgAAAAAAAAAAAAAAAGBwAAAAAAAAAAAAAAwHAAAAAAAAAAAAAAHAAAAAAAAAAAAAAAAMAAAAAAAAAAAAAAAAgwAAAAAAAAAAAAAAADgAAAAAAAAAAAAAAA6AAAAAAAAAAAAAAP7YAAAAAAAAAAAAAAP5AAAAAAAAAAAAAgA/8AAAAAAAAAAAIDAA/AAAAAAAAAAAAAAAP4AAAAAAAAAAAAAAA+AAAAAAAAAAAAAAAP4AAAAAAAAAAAD5wA3gAAAAAAAAAAAPiAD+AAAAAAAAAAAAYA7e4AAAAAAAAAAAAAP3TAAAAAAAAAAAAAA+N8AAAAAAAAAAAAABy/AAAAAAAAAAAAAAAJgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAADAAAAAAAAAAAAAAAA="}