Chart correction 4509 — chart 1256

Chart 1256 [ previous update 5644/25 ] WGS84 DATUM Insert GfFl(5)Y.20s ODAS 36° 45´·0N., 125° 36´·5E. 61 KOREA - South Coast - Light. Source: Korean Notice 34/517/25 Note:This update is included in New Edition 3480, published early 2026.

Source: UKHO Admiralty Notices to Mariners

Reference information — always verify against official Notices to Mariners before navigation.