Condos For Sale Mariners Cay Folly Beach SC MLS Listings Data: Mariners CayTotal Listings:6Average Price:$545,417Highest Listing Price:$599,000Average Days On Market:152Condos For Sale Mariners Cay Folly Beach SC. MLS real estate condominium listings for sale in Mariners Cay Folly Beach SC by list date, number of bedrooms, baths, & floor. Currently, Mariners Cay condos in Folly Beach SC have a total of six listings on the local MLS for sale in the community with an average price point of $$545,417, the max being $$599,000 and the lowest priced unit $$450,000. The Mariners Cay condo development of Folly Beach SC has an average unit size of 1,264 sq ft and the average days on the market in this community/building is 152. If you have never owned a condo we suggest reading All You Should Know About Condo Ownership. 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 Switch to Grid View Switch to Map View Loading...