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.

With opening of the Elbe tunnel in 1911, the HADAG line Landungsbrücken — Steinwerder lost 259,000 passengers p.a..

In 1918, with the end of the concession, the HADAG wanted to rise the fare price.

[2] The HADAG runs public transport ferries and pleasure boats on the rivers Elbe and Alster.