Don’t expect a linoleum-lined chippie, but a classy fish market-cum-restaurant, hidden on a lost-in-time side street. Every hotel manager within a walkable radius recommends it. Portions are huge, and there’s always a selection of fresh fish (sole, salmon, halibut, and so on). If you need a healthier option, you can also get your fish grilled. Try the terrific homemade tartar sauce, or, for fans of little fishies, sample grilled sardines with salad. Here, take-away is about half the price of sitting down.