Blithewold Mansion, Gardens & Arboretum 101 Ferry Rd, Bristol, RI02809 Blithewold Mansion, Gardens & Arboretum is a grand estate overlooking Bristol Harbor. This Queen Anne mansion has…More been kept well maintained in order to preserve its turn-of-the-20th-century style. The gardens and enclosed woodland feature an abundance of indigenous plant life, a rock garden and a variety of trees. Blithewold hosts an education summer camp, where children are taught botany, wildlife and environmental preservation. The mansion is available to be rented for special private events rental. Group tour, camp and event information are available on the Blithewold Mansion, Gardens & Arboretum website.