Karimunjawa National Park, also Crimon Java National Park, is a national marine park designated in the Karimun Java archipelago, Jepara Regency, Central Java, Indonesia. It lies 80 km north west of Jepara, Central Java in the Java Sea. The national park was formally declared as Marine Protection Area in 2001. Based on popular local myth, this archipelago was discovered by Sunan Nyamplungan, the nephew of Sunan Kudus who is one of the Wali Sanga.Karimun Java is also a tourist attraction popular for its white sandy beach, pristine coral reefs, challenging treks through the hills, the pilgrimage to Sunan Nyamplungan Cemetery, and the customs and traditions of the Karimunjava community.