Largest quasi-national parks Japan 2023by area
As of March 2023, the Hidaka-Sanmyaku Erimo Quasi-National Park had the largest gross area among all quasi-national parks in Japan, with approximately 103.5 thousand hectares. Hidaka-Sanmyaku Erimo Quasi-National Park lies in the south of Hokkaido Prefecture and includes Hidaka Mountains and Cape Erimo.