Giant fireworks color the sky and sea of Toba Bay A fireworks display over the sea that colors the sky and sea of Toba Bay. The lights of the fireworks and cruise ships reflect on the water, creating a magical scene. The Toba Minato Festival began when the Kotohiragu Toba Branch Shrine was established. The Kotohiragu Toba Branch Shrine was built in 1956, following the passionate request of Toba citizens, bringing a divided spirit from the main Kotohiragu Shrine in Shikoku.