Chart correction 4966 — chart 1721
Chart 1721 [ previous update 3195/25 ] CGCS 2000 DATUM Insert the accompanying block, centred on: 28° 04´·5N., 121° 09´·1E. depth, 66 (a) 28° 07´·25N., 121° 24´·75E. Delete depth, 82 , close SE of: (a) above Insert depth, 48 , and extend 5m contour SE to enclose 28° 07´·38N., 121° 27´·03E. depth, 124 (b) 27° 55´·33N., 121° 08´·45E. Delete depth, 142 , close E of: (b) above Insert depth, 49 , and extend 5m contour E to enclose (c) 27° 41´·03N., 120° 52´·93E. Delete depth, 54 , close NW of: (c) above Insert depth, 66 (d) 27° 39´·44N., 120° 57´·57E. Delete depth, 76 , close S of: (d) above Insert depth, 129 (e) 27° 38´·46N., 120° 57´·22E. Delete depth, 142 , close E of: (e) above Replace depth, 196 , with depth, 176 27° 51´·56N., 121° 12´·10E. depth, 72 , with depth, 48, enclosed by 5m contour 27° 38´·17N., 121° 02´·92E. Delete symbol, Virtual aid to navigation, isolated danger topmark, V- AIS 27° 59´·40N., 121° 41´·10E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.