BEST VACANT RESIDENTIAL HOMESITE IN POPULAR "EMERALD OAKS" SUBDIVISION - CRYSTAL RIVER. Looking for a vacant lot to build your dream home on, this is it. This 2-acre vacant residential site is wooded & in its natural condition and overlooks a pond. Emerald Oaks is located about 5 miles north of Crystal River near the hospital, shopping and area activities. Country living at it's best.