Chart correction 5057 — chart 517

Chart 517 [ previous update 4167/23 ] WGS84 DATUM Insert legend, OIL AND GAS ACTIVITY (see Note), centred on: 7° 44´·3N., 56° 18´·5W.

Source: UKHO Admiralty Notices to Mariners

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