Condos For Sale Mariners Cay Folly Beach SC MLS Listings Data: Mariners Cay Total Listings: 5 Average Price: $535,700 Highest Listing Price: $590,000 Average Days On Market: 96 Condo 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 five listings on the local MLS for sale in the community with an average price point of $535,700, the max being $$590,000 and the lowest priced unit $450,000. The Mariners Cay condo development of Folly Beach SC has an average unit size of 1,243 sq ft and the average days on the market in this community/building is 96. If you have never owned a condo we suggest reading All You Should Know About Condo Ownership. Relative Sort by Year Built: low to high Sort by Year Built: high to low Sort by price: low to high Sort by price: high to low Sort from oldest to newest Sort from newest to oldest Sort by status: active to under contract Sort by status: under contract to active Saving Subscribe Unsubscribe Loading...