Hobe Sound National Wildlife Refuge, was established September 30, 1969. It is a coastal refuge bisected by the Indian River Lagoon into two separate tracts of land totaling over 1000 acres. The 735 acre Jupiter Island tract provides some of the most productive sea turtle nesting habitat in the United States, and the 300 acre sand pine scrub mainland tract is valued because more than 90 percent of this community type has been lost to development in Florida. Sand pine scrub habitat is restricted only to Florida and an adjacent county in Alabama.