KIAWAH ISLAND — A property owner’s association wants to relocate an environmentally sensitive inlet between Kiawah and Seabrook islands, an area two conservation groups say is a “Holy Grail” habitat for local endangered species.

The Seabrook Island Property Owners Association is asking state and federal regulators for permission to relocate Captain Sams Inlet (which forms Captain Sams Spit) to a position it previously occupied.

The work would require the excavation of 10 acres of sand and the filling of 10 acres of water, according to a public notice for the project.