While the final borders of the parks have yet to be determined, the marine park would cover about 1,160 square miles (3,000 square kilometers) and would protect coral reefs, dolphins and mangrove forests, the statement said. The new marine park will expand the Great Kimberley Marine Park to 10,000 square miles (26,000 square km).
"Protecting the Kimberley coast and its marine and bird life provides a balance to the rapid spread of mining and other industrial development," John Carey, the Pew Environment Group's Kimberley Conservation Project director, told the Australian Associated Press.
The marine park would be multiple-use, with fishing and tourism opportunities. Existing pearling leases will also be maintained, the government statement said.
The park with be managed jointly with its traditional owners, the Dambimangari people, the premier said.