Chart correction 1609 — chart 497
Chart 497 (Panel A, Tuzla to İzmit) [ previous update 1238/24 ] WGS84 DATUM Insert ¶ Iso.Y.2s5M 40° 41´·46N., 29° 33´·25E.
Source: UKHO Admiralty Notices to Mariners
Reference information — always verify against official Notices to Mariners before navigation.