Chart correction 4164 — chart 1631
Chart 1631 (INT 1418) [ previous update 3818/26 ] WGS84 DATUM Insert ì Maas Approach Ch 01, direction of vessel movement 191° (a) 52° 22´·57N., 3° 49´·00E. Delete former ì Maas Approach Ch 01, close SW of: (a) above Insert ì Maas Approach Ch 1, direction of vessel movement 120° 52° 18´·04N., 3° 37´·80E. Delete ì Maas Approach Ch 01 52° 21´·37N., 3° 52´·20E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.