Jin Do, Chintō or in Shotokan, Gankaku (岩鶴 - rock crane) is an advanced form practiced in many styles of Tang Soo Do and Karate. According to the late Grandmaster Hwang Kee, Jin Do Hyung is derived from the thirteen basic poses or positions in the martial arts (Tang Soo Do Moo Duk Kwan Vol 2).
