Union Grands Crus 2023 Vintage Reveal is, in a tennis fan’s terms, a Grand Slam event. To wine lovers, it is the premiere wine tasting of the year. The UGCB TOUR of the 2023 Vintage Reveal continued in Miami, Los Angeles and San Francisco. That gives you an idea as to just how important and crucial this event is to those in the world of wine. Haut-Brion, Chateau Clinet, Chateau Le Gay, Domaine de Chevalier, among others.