Chart correction 2687* — chart 5609_12
Chart 5609_12 [ previous update 1917/23 ] ETRS89 DATUM Amend fog signal to, Horn(1)20s, at light 53° 19´·854N., 4° 37´·157W.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.