Rakiura National Park encompasses a large area of Stewart Island, including some rivers and adjoining Islands, as well as the large majority of Ulva Island.
On 28th February 2002, approximately 83% of Stewart Island became New Zealand's 14th National Park.
In June 2004, a small marine reserve was established in Paterson Inlet and around almost half of Ulva Island's coastline.
A variety of conservation projects are carried out in Stewart Island. These include: