In Port Blair, the main places to visit are the Cellular Jail, Mahatma Gandhi Marine National Park, Andaman Water sports complex, Chatham Saw Mill, Mini Zoo, Corbyn's cove, Chidiya Tapu, Wandoor Beach, Forest Museum, Anthropological Museum, Fisheries Museum, Naval Museum (Samudrika), Ross Island and North Bay Island. Viper Island which was earlier visited is now kept closed by the administration. Other places include Havelock island famous for Radhanagar Beach, Neil Island for Scuba diving/snorkeling/sea walking, Cinque Island, Saddle peak, Mt Harriet, and Mud Volcano. Diglipur, located at North Andaman is also getting popular in 2018 and many tourists have started visiting North Andaman as well. The southern group (Nicobar islands) is mostly inaccessible to tourists.