Chart correction 1557 — chart 3686
Chart 3686 [ previous update 130/23 ] NAD83 DATUM Delete fog signal, Whis, at buoy 34° 36´·66N., 76° 41´·20W. Wk18/23 II 2.28
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.