While transportation is required to explore the sprawl of Napa Valley’s 30-by-5 miles, Downtown Napa presents opportunities for a walkable adventure on both sides of the Napa River. First Street Napa is the heart of downtown shopping, dining, and wine tasting. Oxbow Public Market has an outstanding collection of local food and drink purveyors under one roof in a riverside location with an outdoor deck. Historic Napa Mill has more to explore. Take a gondola ride to see more from the water, rent a bike to ride the Napa Valley Vine Trail starting at Oxbow. visitnapavalley.com, donapa.com<