Located in Fiordland National Park in the Fiordland region
This majestic fiord has no direct road access and so is quieter and more remote than it's famous neighbour Milford Sound and visitors agree that this adds to its magic.
Doubtful Sound is one of the largest of the fiords, it has three main arms and is home to three of Fiordlands 10 marine reserves.
You can walk four tracks that start from Deep Cove Hostel.