New Zealand's Doubtful Sound - a huge fjord that stretches as far as the eye can see - is a massive wilderness area full of rugged peaks, lush rainforest and twisting inlets all located within the heart of Fiordland National Park on NZ's south island. A huge variety of natural beauty and local wildlife combine to make Doubtful Sound an essential place to visit while in NZ, and in terms of size it is 3 times longer and 10 times larger than Milford Sound. Home to many native creatures that make for a delightful spectacle including dolphins, fur seals and more, trip to Doubtful Sound will provide the quintessential nature experience that acts as a microcosm of New Zealand in a single delightful tour, cruise or scenic flight!