The Festa de São João (Festival of Saint John) is an annual celebration held in Porto, Portugal, in honor of Saint John the Baptist. The festival, which takes place in June, is one of the most vibrant and popular events in Portugal, featuring street parties, music, dancing, and fireworks. A unique tradition of the festival is the hitting of people's heads with plastic hammers, as a playful gesture of celebration. The Festa de São João also includes barbecues, with grilled sardines being a local favorite, and the release of sky lanterns into the night sky, creating a stunning visual display. It is a joyful and lively celebration of local culture, community spirit, and tradition.