Cruise with Southern Discoveries and you can discover Milford Sound above and below the surface. Upgrade any of our cruises with a visit to the amazing Underwater Observatory and you’ll get a truly immersive experience for an unbeatable price.
A unique opportunity to visit New Zealand’s only floating underwater observatory, accessible only by boat. Descend by spiral staircase to 10 metres beneath the water’s surface. See rare black coral growing in its natural habitat and meet colourful sea creatures. Relax as our guide tells you more about the unique history, geology and wildlife of Milford Sound. Learn about our conservation efforts to protect native birds and lizards in Milford Sound through the Sinbad Sanctuary Project.