Iga city is located in Mie Prefecture. Iga was home to Japan's most famous Iga Samurai and their techniques of ninjutsu. Iga's main tourist attractions are the Iga Ueno castle and the Iga ryũ ninja museum. There is an annual Iga Ueno ninja festival held from April 1 to May 6 in which people dress up in the popular modern image of ninja.

The Samurai of Iga were recognised from early on in Japanese history as experts in the skills of what later came to be termed ninjutsu. Their skills were recognised and used in battle by outsiders of the region from the earliest times and their exploits have fuelled the imaginations of generations and spurned a booming industry - the ninja industry.