- Sui-ren
was the training that
ninja underwent for techniques involvingwater . Some ninja were tasked to either deal with opponents in the water, disguise themselves in it, or to cross it.Ninja water techniques fall into 5 major categories.
Boats
Ninja sometimes used rafts or portable collapsing boats to follow convoys in the water, or to cross rivers, or in the ocean. These boats, however, were not made to last very long.
Water as a weapon
Ninja used water as a weapon, destroying
bridge s, dikes, or otherwise contaminating water sources, or withholding water from captives. They would weaken the bridge or dikes support beams so when an enemy walked over it would collapse.Tools
A ninja could use a breathing tube that looks like a reed to stay underwater for a long period of time. These tubes sometimes were used to blow darts at unsuspecting opponents from under the water.
tealth
In old
Japan it was not uncommon for ninja to use water urns, wells, andriver s to hide and watch people. Using the method of breathing through a reed they went into the well filled with water to better conceal themselves.urvival
Ninja had to know how to find, purify, and transport water over distances. As a survival skill some ninja could find water in unlikely places.
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