Vacaville loves your pets! Vacaville makes a great base camp for exploring Solano County treasures ranging from wineries and farms in the Suisun Valley, to vast tracts of public lands and even a railway museum with excursion trains that welcome four-legged passengers. And don't miss a stop at Lagoon Valley Park's 30,000-square-foot dog park. Take a road trip to Suisun Valley's dog-friendly wineries, or explore nearby Napa and Sonoma counties and the Carneros wine region with your pup.