Wiltons
Tucked away near Haymarket, Wiltons has been shucking oysters since 1742, making it one of the oldest oyster restaurants in London, let alone one of the oldest oyster bars. Don't let the history fool you into expecting stuffiness though; the eight-seat marble counter at the front is exactly where you want to be, watching your Jersey Rocks or Loch Ryan natives prepped right in front of you. Prefer yours dressed? Go Rockefeller or Kilpatrick. Feeling like a deep dive? They run an oyster masterclass that'll turn you from curious to confident in one sitting.