Chart correction N24/21 — chart 91400
91400 3Ed. 12/24/11 LAST NM N23/21 N24/21 Delete Depth 20.1 meters 13°08′20″N 123°49′52″E Depth 16.5 meters 13°08′07″N 123°49′55″E Note: Blue tint and depth contour (20-meter) remain Add Depth 16.1 meters 13°08′16″N 123°49′56″E and extend depth contour (20-meter) and blue tint N to enclose (2(47)16 Manila)
Source: NGA U.S. Notice to Mariners · edition: 3Ed. 12/24/11
Reference information — always verify against official Notices to Mariners before navigation.