Expedia is your one-stop shop for booking every detail of your holiday. Find the ideal car hire to explore Sonoma Valley Regional Park, then add flights and hotels to snap up the best price possible. Many car hire companies offer free cancellation, so you don't have to stress if your plans change. Make sure you join Expedia Rewards to earn points on your car hire and other bookings. They'll help you save on your next memorable adventure, whether that's a mini break in the city or an once-in-a-lifetime road trip!