Iga school was also known for its unique training method such as running through Ichi-ri (about 3.927km) without dropping a piece of paper covering half face, and it had been their tradition to grow excellent Ninja by giving such hard training since their childhood.
また伊賀流の訓練法は独特さをもって知られており、例えば顔の半分を紙で覆い紙を顔から落とす事なく一里以上を走りぬく等、幼少の頃から厳しい訓練のもと優れた忍者を育てる事を伝統としてきた。