Buoy, Common

A buoy is used to mark a specific spot in lakes, rivers, or similar bodies of water making it possible for you to return to that location a later date. Each includes a float (typically an air-filled bladder or sealed gourd), a 200-foot length of twine, and 15-pound stone used as an anchor. The float is usually painted a vivid color, and may have a small flag to attract attention. Though anchor buoys prove quite resilient to normal weather and tides, they offer little challenge to intelligent creatures determined to sabotage them.