Mariners Cay Folly Beach SC Homes & Real Estate For Sale MLS Listings Data: Mariners CayTotal Listings:13Average Price:$447,865Highest Listing Price:$669,000Average Days On Market:163Houses For Sale Mariners Cay subdivision Folly Beach SC. MLS real estate listings for sale in Mariners Cay Folly Beach SC by price, street, age, list date, bedrooms & more Mariners Cay Folly Beach SC. Currently, Mariners Cay in Folly Beach SC has a total of thirteen listings on the local MLS for sale with an average price point of $447,865, the max being $669,000 and the lowest priced house $15,000. The neighborhood of Mariners Cay subdivision in Folly Beach SC has an average house size of 1,051 sq ft and the average days on the market in this community is 163. RelativeSort by Year Built: low to highSort by Year Built: high to lowSort by price: low to highSort by price: high to lowSort from oldest to newestSort from newest to oldestSort by status: active to under contractSort by status: under contract to active Filters Saving Subscribe Unsubscribe Loading...