The Oigawa Grand Fireworks Festival is a long-running summer event held in Shimada, Shizuoka Prefecture, Japan. First staged in 1987, it was created to support regional revitalization and encourage summer tourism around the Oi River and the surrounding area. The festival brings together large crowds to watch a vivid display of fireworks against the river’s broad landscape. Its program includes creative fireworks and a variety of styles, with the starmines—rapid sequences of fireworks blooming across the night sky—highlighted as a major attraction.

The festival’s official website, run by the Shimada Tourism Association, serves as a practical guide for visitors. It provides event information and history, official program details, venue maps, visitor rules and precautions, transportation and access guidance, and information about traffic restrictions. Visitors can also find frequently asked questions and details about paid reserved viewing seats, which offer a closer, more comfortable place to watch the display, as well as paid parking information. The site shares schedule updates, including arrangements for postponement in severe weather, and post-event announcements.