The Casablanca Valley, famed for its excellent white wines, is accessed via Ruta 68, which connects Valparaíso and Viña with Santiago. Ruta del Vino Valle de Casablanca (32 274 3933, casablancavalley.cl), Portales 90, in Casablanca, organizes tours of the wineries. You can also visit the vineyards independently (a list of all those participating in the ruta del vino is available on the website); having your own car makes things a lot easier, but it is possible to visit some using the frequent Valparaíso/Viña–Santiago buses.