Chart correction 4516 — chart 831
Chart 831 (INT 1769) [ previous update 2261/23 ] WGS84 DATUM Insert ¯, and extend 3m contour E to enclose 59° 15´·34N., 18° 22´·83E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.