Prestigious Island Estates, which ... is part of Hammock Dunes, is connected to the near-by ocean by two private bridges. Island Estates is a 2.5 mile long island that is graced with exquisite waterfront homes located between the Intracoastal Waterway (ICW) and the Florida East Coast Canal. This house is located 25 miles south of historic St. Augustine. Hammock Dunes Country Club memberships are available to residents. MLS# 180475.