A neat piece of trivia about Hamburg is that this one city has more bridges than London, Amsterdam and Venice combined.
Many of these cross the tangle of canals and rivers that feed in to the upper end of the lake at the centre of the city.
The shores of the Außenalster, separated from the smaller Binnenalster by the Kennedy Bridge, are one large park.
Joggers come to squeeze in their early morning exercise and friends meet up for coffee at one of the many kiosks and bars on the tree-lined banks.