Since opening in 1970, many guests have visited Kamogawa SeaWorld. Facing their 48th anniversary, SeaWorld would like to thank their many patrons with a special campaign offering all regular tickets at half price.
http://www.kamogawa-seaworld.jp/english/

Dates
2018/9/30 (Sun) & 10/01 (Mon)

Special Entry Tickets
Adults (High School and older)Entry ￥2,800 → ￥1,400
Children (Age 4 through Middle School)Entry ￥1,400 → ￥700

Reference
*This deal does not combine with other discounts