North of Port Clinton is open water Lake Erie. Perry Grove or Perry Cove are names in Navitronics? I guess that goes to show Navitronics info is only as good as what was put into it my the coders. After a quick search, "Perry Cove" apparently is the entire "bay" from Catawba Point to the Toussaint River mouth. Maybe that name came from some real old navigation charts or local charts. I've been on the Lake for 40+ years and I've never heard that area called "Perry Cove".