Chart correction 5610 — chart 1721
Chart 1721 [ previous update 4897/24 ] CGSC 2000 DATUM Insert symbol, Virtual aid to navigation, isolated danger topmark, V- AIS, out of position 28° 07´·45N., 121° 22´·45E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.