The Tasman Region is both a region and a district of New Zealand. It borders with the West Coast Region, Marlborough Region and the Nelson Region. It is both a region and a unitary authority, and the District Council sits at Richmond, with Community Boards serving outlying communities in Motueka and Golden Bay. Though the city of Nelson forms its own unitary region separate from the Tasman Region, the Tasman Region and Nelson are often grouped together by the public under a looser definition of the term "Tasman".
The landscape is diverse, from large mountainous areas to valleys and plains, and is sliced by such major rivers as the Buller River, Motueka, Aorere, Takaka and Wairoa River. The limestone-rich area around Mount Owen and Mount Arthur is notable for its extensive cave networks, among them New Zealand's deepest caves at Ellis Basin and Nettlebed. There is lush bush and bird life, golden beaches, the unique 40 kilometre sands of Farewell Spit, and boundless fishing in the bays and rivers. These assets make the district irresistible to tourists and precious to those who live there.