Residential development has impacted a significant amount of the harbour foreshores over many years. Much of what remained was preserved partly due to the presence of military bases, and partly because of the work of conservationists. Early conservationists were responsible for stopping mining at Ashton Park in the 19th Century. Other places were saved because of people such as Niels Neilsen, who became the New South Wales Minister for Lands and a strong advocate of a public reserve around Sydney Harbour. Nielsen was ahead of his time when he used the phrase "national park" in regard to the harbour foreshores, but Sydney eventually caught up with him. It was not possible to undo all the damage done in past decades, but there was still much that could be preserved, and the 1960s were a particularly active time in this regard. In 1965 the Government of New South Wales began buying land around the foreshores, and the National Trust suggested a national park in 1968. In the following year, the NSW Government announced a plan whereby it would buy Commonwealth land around the harbour. The Sydney Harbour National Park was finally gazetted in 1975, with Nielsen Park at Shark Bay being added in 1978. Extra land was transferred from Commonwealth to State Government control, and added to the national park in 1979; the historically important quarantine station at Manly was added in 1984.
Features
The national park is renowned for its sheltered beaches, tranquil picnic spots, rich Aboriginal, colonial and military heritage, aquatic reserves and harbour islands. The Guringai Resting Places, at both Reef Beach and Quarantine Station, are Aboriginal reburial sites where ancestral remains have been returned to Country. Access to the Aboriginal burial sites is restricted at the request of the Aboriginal community. Military fortifications, at the Georges Head Battery, Fort Denison, and North and South Heads stretch back to the early years of the colony. At the Quarantine Station there are archaeological features and over a thousand engravings. Historic sites include Greycliffe House, erected at Shark Bay by the Wentworth family in neo-Gothic style during the 1850s; and the mast of the first at Bradleys Head. There is also a swimming beach at Nielsen Park, a restaurant and a cafe.