Taking place during in the 2nd to 3rd lunar month, the festival derives from the cult of worshipping whale, also known as Ông Nam Hải (Mr. Nam Hải). Whale worship is a longstanding tradition of maritime communities along the Central coast. According legend and local belief, whales are savior of fishermen in the sea and bring about good fisheries. In Khanh Hoa Province, the festival begins with a Nghinh Ông (Whale Procession) Ceremony in the sea. To invite the whale spirit, the local fishermen make an offering ceremony on the sea. After that, 15 fishing boats, lining up in a V shape, make a parade on the sea, processing the whale’s spirit to his temple on shore. The festival subsequently continues with the royal decree procession ceremony. This is followed by a ritual inviting the spirit enter the temple. Lion and dragon dances, bá trạo singing and tuồng opera performances add a more joyful atmosphere into the festival.