April 28th. Hainan Sanmenpo Litchi Festival mainly carries out activities such as commodity display, industrial introduction negotiation, scientific and technological exchange, trade exchange, culture and sports, etc., which began on April 28, 2023. Hainan Sanmenpo Litchi Festival is not only a trademark brand, but also an important platform to promote the docking of litchi production and marketing, and has become a grand festival for the people of Sanmenpo.