Hi-Speed and Traditional Ferry service to Block Island from Narragansett RI, Newport RI and Fall River Mass. The Block Island Ferry, Interstate Navigation Company, has operated the only year-round ferry service to Block Island for 81 years. Daily vehicle and passenger ferry service between Block Island and Point Judith (Narragansett), RI. We are also proud to offer seasonal Hi-Speed Ferry service to Block Island from Point Judith RI, and downtown Newport RI. Sail Away on the Block Island Ferry, Interstate Navigation.