The Summerhouse, a canalside venue near Little Venice, serves catch of the day alongside New England clam chowder, seared scallops and rock oysters. Grab a table by the water on the covered terrace, which is heated so you can stay out late.
You could also try its nearby sister restaurant, The Waterway, which has a large wooden deck and garden with parasols, blankets and heaters.
London’s bar scene has plenty of alfresco options. You can’t go wrong with Rumpus Room, a slick rooftop bar that reopened last month following a renovation. On the 12th floor of Mondrian London at Sea Containers hotel, it overlooks the River Thames.
If you’d rather be closer to nature, check out The Narrowboat, a beautiful canalside bar in Islington – you might even spot kayakers paddling past. The Crooked Billet, a parkside pub by Wimbledon Common, is another popular option on a sunny day.
This image: The Summerhouse Inset: The Waterway