The visitor section of the Milford Sound Underwater Observatory building in Harrison’s Cove was reported as partially underwater when a pontoon was storm-damaged at the start of September, Environment Southland said in a statement this week.
The building was immediately secured and steps taken to ensure against any potential oil spill.
Closer inspection revealed three of five pontoon buildings had been damaged.
The recovery was a delicate operation — acknowledging both the remote location, the sensitivity of the area and ongoing weather events in September which restricted access to Milford Sound.
They have been secured ashore at Deep Water Basin, where deconstruction and removal from Milford Sound will take place.
Southland harbourmaster Lyndon Cleaver said New Zealand Diving and Salvage had done a good job managing the recovery and keeping all parties informed of progress.