Doubtful Sound is a very large and naturally imposing fiord (despite its name) in Fiordland National Park, in the far south-west of New Zealand. Though it is 3-1/2 times larger than Milford Sound, Milford is more famous as it is more accessible. It is also much more crowded with boats.
According to Wiki, Doubtful Sound takes second place after Milford Sound as New Zealand’s most famous tourism destination. After a bus ride to Te Anau (such a pretty little town!), a van ride to Manapouri, a ferry across Lake Manapouri, and another van up and over Wilmot Pass, we boarded Fiordland Expeditions‘ boat for an overnight cruise on Doubtful Sound.