Germany's prosperous port city has diversions to suit every traveller. Coffee and cake, all-night beers, fish sandwiches, vintage clothes for sale by the kilo, museums, book shops and, of course, all that water: canals, lakes and the mighty River Elbe. From wealthy suburbs to the old docks, our 30 carefully selected suggestions for some of the best things to see, do, eat and drink are Authentically Hamburg.