Chart correction N18/23 — chart 93733

93733  15Ed.  07/31/21  LAST  NM  N15/23  N18/23 Delete Buoy   22°11′44″N  114°03′23″E Buoy "Shek Kwu Chau"   22°10′46″N  113°59′32″E Add Buoy "Cheung Chau" YB, double cone topmark points downward, Q(6) + L Fl W 15s [Q130.3]   22°11′04″N  114°02′54″E Buoy "Shek Kwu Chau SE" BY, pillar, double cone topmark points upward, QW [Q130.3]   22°10′04″N  114°02′20″E Buoy "Shek Kwu Chau SW" BY, pillar, double cone topmark points upward, QW [Q130.3]   22°10′21″N  113°58′09″E (7(12)23 Hong Kong)

Source: NGA U.S. Notice to Mariners · edition: 15Ed. 07/31/21

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