Doubtful Sound, (The sound of silence), while not accessible by road is extremely intriguing. A launch trip to the West Arm of Lake Manapouri reveals the above ground parts of the mighty underground Manapouri Power Station and a short bus trip will take you deep into the man made powerhouse before returning you to the surface and taking you through some of New Zealand's most scenic rain forests and over the Wilmont Pass into Doubtful Sound.

Both Sounds have a small fleet of Vessels waiting to take you on a nature cruise through the sounds and out onto the Tasman Sea. There are a range of options available from short day trips to overnight or weekly cruises or perhaps a fishing adventure.