Chart correction 4663 — chart 3881

Chart 3881 [ previous update 4571/23 ] WGS84 DATUM Insert depth, 16 , and extend 2m contour E to enclose (a) 20° 48´·55N., 106° 50´·32E. Delete depth, 23 , close NW of: (a) above

Source: UKHO Admiralty Notices to Mariners

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