Newport Mansions Small-Group Day Trip from Boston. Escape to the lovely coastal city of Newport, Rhode Island, on this day trip that includes both a guided tour and free time. Explore The Breakers mansion, the summer home of Cornelius Vanderbilt II's family. See top Newport attractions such as St Mary's Parish, Ocean Drive and the Naval War College on a narrated city tour. Then spend the afternoon exploring more of this quaint and historic city on your own. This small-group tour is limited to 14 people for a more intimate, interactive experience. Book now and Save 10%: Newport Mansions Small-Group Day Trip from Boston.