Parangkusumo is a small beach as a part of Parangtritis beach and Parangkusumo is famous of its sacred myth. In Javanese culture and tradition, Parangkusumo beach is considered as the main gate to enter the Mystical Kingdom of South Sea, a spiritual palace of Queen of The South who rules the Indian Ocean. Several offering ceremonies from Ngayogyakarta Hadiningrat Palace as well as from local communities, are held in Parangkusumo.

For instance Melasti Ceremony as a ritual of Nyepi Day which is commemorated by the Hindu. Besides there is also Labuhan Kraton (the Palace Offerings) ata Parangkusumo as the commemoration of symbol over relation and authority between Kraton Ngayogyakarta and the Goddess of the South Sea.

The offering in Parangkusumo to Kanjeng Ratu Kidul is considered as very important ritual for the Yogyakarta Karaton. She has promised to always protect Panembahan Senopati and his descendants and the Mataram Kingdom in time of difficulties. Upon the advice from his wise and spiritually powerful advisers, among other Ki Juru Mertani, Panembahan Senopati was meditating in Parangkusumo, on the beach of the South sea.

The strong meditation had caused a gara-gara (natural disorder), affecting "chaos" in the South Sea Kingdom. She came to the Great Ruler of Mataram by saying that all his wishes were granted by God the Almighty. More-over she vowed her promise sincerely. Thus the agreement had been made, according to the legend of Babad Tanah Jawi (The Legend of the land of Java). The link between the Kings of Mataram with Kanjeng Ratu Kidul strengthens the legitimacy of the Sultans.