Milford Sound is a fiord in the south west of New Zealand's South Island within Fiordland National Park, Piopiotahi (Milford Sound) Marine Reserve, and the Te Wahipounamu World Heritage site. It has been judged the world's top travel destination in an international survey and is acclaimed as New Zealand's most famous tourist destination. Rudyard Kipling calleā¦Milford Sound is a fiord in the south west of New Zealand's South Island within Fiordland National Park, Piopiotahi (Milford Sound) Marine Reserve, and the Te Wahipounamu World Heritage site. It has been judged the world's top travel destination in an international survey and is acclaimed as New Zealand's most famous tourist destination. Rudyard Kipling called it the eighth Wonder of the World. The fiord is most commonly accessed via road by tour coach, with the road terminating at a small village also called Milford Sound.