Starting tonight at Vancouver Landing: ?Dos dias de la hora feliz! Put another way: Two days of happy hour! Organizers of this weekend’s ¡Viva Vancouver! Festival want to build a bridge between cultures here in Southwest Washington. What better way, they figure, than through food and drink, music and dance? “For two days, you don’t have to think about work or the bills or customers or your deadlines,” said organizer Domingo Estrada.