Province Foundation Day is observed in the provinces of Surigao del Norte and Surigao del Sur in the Philippines on June 19. This celebration marks the foundation anniversaries of both provinces, which were created by splitting the original province of Surigao in half on June 19, 1960. The historical roots of the region trace back to the Spanish colonization, with significant events including the establishment of the district of Carago in 1609 and the formal creation of the province of Surigao in 1901. The provinces commemorate this day with various local festivities and activities that honor their shared history and cultural heritage. Notable locations include Surigao City, the capital of Surigao del Norte, and Tandag, the capital of Surigao del Sur.