We are planning a trip to New England the second week of April. Our daughter loves zoos and although we are staying in Plymouth, MA, we have heard that the Franklin Park Zoo in Boston isn't all that nice and that the Roger Williams Zoo in Providence would be a much better choice. Would you agree? Also, we are also planning on seeing the Newport Mansions and I was wondering if the zoo and the mansions would be too much for one day if we left Plymouth pretty early in the AM. Thanks!!