Iwasaki Hisashi Sensei
From Openwaterpedia
Iwasaki Hisashi Sensei (or Iwasaki Soke) is the Soke (Hereditary Headmaster) of Kyoto's Kobori Ryu suiei-jutsu and is one of the people responsible for preserving Suieijutsu in Japan. He is a Senior Advisor to the Shodokan Martial Arts Association and one of the highest ranking martial artists in Japan.
Iwasaki Soke teaches and preserves a very rare and esteemed form of ancient bujutsu called Suijutsu (水術 or Suieijutsu), the ancient Japanese martial art of Combative swimming.