Saegreifinn ★ 4.3
Green fisherman's hut by the old harbour on Geirsgata since 1992, world-famous lobster soup plus grilled fish and lamb skewers; Sea Baron of Reykjavik.
Why locals love it: A green shack among the harbour sheds with barrels for seats, it looks like nothing, yet inside is the langoustine soup travellers cross the city to find.
Tip: Seating is communal on barrels and benches. The langoustine soup with bread is the only order you need.