Malabon Day, also known as Araw ng Malabon, is celebrated in the city of Malabon, Philippines, every May 21. This special non-working holiday commemorates the city's founding anniversary, which dates back to May 21, 1599, when it was established by Augustinian friars as a hamlet of Manila. The city, which is highly urbanized and known for its dense population, has a rich industrial background, with sugar refining and the production of fish sauce being among its main industries. Celebrations typically include official ceremonies, parades, pageants, talent competitions, street games, and various cultural performances, allowing residents and visitors to engage in the festivities. Malabon is also notable for its frequent flooding during heavy rains, earning it the nickname "local Venice." The day serves as an opportunity for the community to come together and celebrate their heritage and culture.