Chart correction 1856 — chart 4603

Chart 4603 (INT 603) [ previous update 4411/23 ] WGS84 DATUM Insert depth, 225, and extend 1000m contour S to enclose 2° 48´·4S., 131° 04´·2E.

Source: UKHO Admiralty Notices to Mariners

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