Chart correction 184 — chart 1664

Chart 1664 (INT 1954) [ previous update 1416/23 ] UNDETERMINED DATUM Insert depth, 20, enclosed by 20m contour 12° 20´·9N., 17° 10´·2W. depth, 197, and extend 20m contour W to enclose 12° 23´·5N., 17° 11´·9W. Replace depth, 73, with depth, 66 12° 44´·0N., 16° 52´·1W. Delete  12° 36´·5N., 16° 54´·4W.

Source: UKHO Admiralty Notices to Mariners

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