Sloans Lake Nature Reserve protects 3.5 km of frontage on Sloans Lake, in the Tusket River watershed near Yarmouth.

The shoreline on Sloans Lake is known for a number of rare coastal plain flora species, and is one of only seven locations in Canada where the nationally endangered pink coreopsis grows. The nature reserve contains many occurrences of this species. It also protects endangered Plymouth gentian, and at least four other rare plant species. Away from the lake shore, the site contains regenerating mixed forest.