The journey to Doubtful Sound starts with a boat cruise across picturesque Lake Manapouri followed by a coach over the Wilmot Pass through Fiordland’s rainforest and into the Sound where you will meet your boat to cruise the deepest fiord in NZ.
Visit website: https://www.newzealand.com/int/doubtful-sound/
Milford Sound
a two-hour drive that should be done at leisure to experience the viewpoints and walks along the way.