By foot from Hamburg to Hamburg (city)
A great way to see the city is by foot. The harbor district and the warehouse district are located minutes away from the HafenCity Cruise Center which is also at a 20 minute walk to the downtown city.
From the Altona Cruise Center it's a 50 minute walk to the city center (4 km).
TIP: From Atlona Cruise Center first take a 15 minute walk to the S-bahn station at the Reeperbahn and witness the famed street, then get a train to other spots in the city.