Bar Antoine

You're stepping into one of those Mayfair addresses that feels properly grown-up—the kind of place where people actually dress for an evening out and the bartenders know their way around a spirit cabinet. Bar Antoine operates as part of the Pavillon London experience, so you're getting that refined atmosphere without the stuffiness that can sometimes plague Mayfair lounges. The space itself is intimate enough that you won't feel like you're in a cavernous West End bar, but there's enough going on to keep things interesting. Cocktails are taken seriously here, which means you're getting proper technique rather than just a pour and a stir.