There are a gazillion fish sandwich vendors in Hamburg, but we're going to stick our neck out and say that this vibrant, clean and contemporary outpost makes the best. Try a classic Bismarck (pickled herring) or Matjes (brined herring), or treat yourself to a bulging shrimp sandwich. Lovely tables outside.
Fischbrötchenbude Brücke 10
Top choice in St Pauli & Reeperbahn