 In the years 1972–1992, the national park increased in size by the addition of land at Stamford Hill, Cape Donington, Wanna and many of the islands adjoining the coast of the Jussieu Peninsula.The Lincoln Conservation Reserve which was proclaimed in 1993 under the "Crown Lands Act" 1929, was added to the national park's management regime and subsequently removed after the declaration of the reserve as the Lincoln Conservation Park.In June 1999, the boundary of the national park was extended down to Mean Low Water Mark.