Don't miss the opportunity to see the Angel Oak Tree on John's Island. It doesn't cost anything and is one of the most photographed beauties in Charleston. The Angel Oak Tree is estimated to be in excess of 400-500 years old, stands 66.5 ft (20 m) tall, measures 28 ft (8.5 m) in circumference, and produces shade that covers 17,200 square feet (1,600 m2). From tip to tip Its longest branch distance is 187 ft. There is considerable debate about the age of the Angel Oak. Some contend that it is 1,500 years old. Most believe that the more conservative estimates are more accurate.