Taehwagang Donggulpia (태화강동굴피아)

Taehwagang Donggulpia has transformed several artificial caves created by the Japanese military during the Japanese colonial period into a tourist attraction, originally intended for storing military supplies. Visitors can catch a glimpse of Ulsan's history and way of life during that era. Outside the caves, there is an artificial falls, and inside, various experiential zones such as the Cave Adventure Zone, Digital Sketch Experience Zone, and Lighting Art Zone offer diverse interactive experiences.