Chart correction 1770* — chart 5600_21
Chart 5600_21 [ previous update 1618/26 ] ETRS89 DATUM Insert legend, Works in progress (2026), centred on: 50° 45´·722N., 1° 17´·544W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.