Chart correction 4156 — chart 540
Chart 540 [ previous update 2341/22 ] WGS84 DATUM Insert depth, 12, enclosed by 2m contour, with seabed type, R (a) 12° 44´·98S., 38° 39´·21W. Delete depth, 52, close SE of: (a) above
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.