"This 1930s gem is a long-time Monocle favourite. It’s one of the most traditional of Helsinki’s restaurants, loved by families, artists and in-the-know travellers alike. Speaking of artists, the mural of the sea horse at the back was painted by two art students in the 1970s. The classic, timeless menu is a good window on typical Finnish cuisine. Must-try dishes include fried Baltic herring with beetroot; cabbage rolls with wild mushrooms; and Sea Horse’s signature dish, beef steak with fried onions. Can’t decide? Ask the knowledgeable staff – most have been here for 10 to 20 years."