Chart correction 921* — chart 1770

Chart 1770 [ previous update 3617/23 ] ETRS89 DATUM Insert Automatic Identification System, AIS, at light-buoy 55° 41´·78N., 6° 36´·85W. 56° 05´·92N., 6° 45´·89W.

Source: UKHO Admiralty Notices to Mariners

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