Free Fun! Beautiful and historic Miantonomi Tower will be open to the public every Sunday, 11:00 am – 2:00 pm, through August 17. Grab a friend and ascend the stairs to see a phenomenal view of our island. Miantonomi Park is the largest park in Newport and features walking trails, wildlife and several historic sites. The 1929 memorial tower was designed by Meade, McKim and White.