Chart correction 5247* — chart 3337

Chart 3337 [ previous update 5125/25 ] ETRS89 DATUM Replace Df;Fl.Y.2s (seasonal) with Bd Fl(2)R.5s Blackwall Point 51° 30´·346N., 0° 00´·106E.

Source: UKHO Admiralty Notices to Mariners

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