Spacious Holiday Home in Washington Beautiful Sun Villa at The Casitas Sienna Hills offers a spacious setting in Washington. Guests enjoy free WiFi and free on-site private parking. Comfortable Amenities The property features air-conditioning, a hot tub, washing machine, fully equipped kitchen, private pool, and TV. Local Attractions St George Temple is 7.5 mi away, Pine Valley Chapel 3.7 mi, Dixie State University 6.8 mi, and St. George Regional Airport 16 mi.