The HADAG, (full name HADAG Seetouristik und Fährdienst AG, literally "HADAG Sea-tourism and Ferry service") is a local public transport company in Hamburg, Germany. It owns and operates passengers ferries across the Elbe River, overseen by and integrated into the network of Hamburger Verkehrsverbund (HVV). In the 1950s the company operated ferries from Hamburg to England, and in the 1980s, the cruise ship MS Astor.