Block Island is a smaller, more approachable, more quaint, and, some would argue, more charming version of Nantucket or Martha's Vineyard. The relatively tiny (3 miles by 7 miles) island offers over 17 miles of wonderful beaches (all free and open to the public), great hiking across coastal cliffs, dunes, and inland farmland, and bike-friendly paths. A small strip of boutiques, galleries, inns, restaurants, and bike and scooter rentals is walkable from the ferry landings in New Shoreham, which makes the island perfect for a relaxing day trip as well as a longer stay. Sitting 13 miles off of the southern coast of Rhode Island and 14 miles from Montauk Point, the eastern tip of Long Island, Block Island is accessible by passenger ferry from Point Judith, Newport, New London, CT, and Montauk, NY.
It's a really easy trip to get to Block Island. The town can get really busy so rent a bike by the ferry landing and start riding. There are endless dirt roads all leading to their own little corner of beach and cobblestone coast. Bring a picnic or grab food in town—once you're a half mile out of town, there isn't much but fields and quaint cottages.
— Read McKendree of Huxter Goods