Chart correction 659* — chart 4031

Chart 4031 [ previous update 265/25 ] WGS84 DATUM Insert depth, 144, enclosed by 15m contour (a) 1° 11´·436N., 103° 40´·182E. Delete depth, 153, close NW of: (a) above

Source: UKHO Admiralty Notices to Mariners

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