Key Takeaways: Setagaya sends up about 6,000 shells over the Tamagawa River on Saturday 3 October 2026 (18:00–19:00), while Kawasaki launches another 6,000 from the opposite bank. General viewing is free, and the Unane and Hirasegawa areas are less crowded than the main Kamata site. Getting home is the hard part: waits at Futako-Tamagawa Station can top two hours, so organisers suggest walking about 30 minutes to Yoga Station instead. Futako-Tamagawa, Tokyo|48th Setagaya Tamagawa Fireworks Festival Two fireworks shows, one river: about 12,000 shells on a Saturday night in October Sat 3 Oct, 18:00–19:00 About 6,000 from Setagaya + about 6,000 from Kawasaki across the river|Free general viewing|15–20 min walk from Futako-Tamagawa Station Based on the official Setagaya Tamagawa Fireworks Festival website and the official 2026 brochure (Japanese and English editions), checked on 28 September 2026. Most of Tokyo’s big fireworks shows happen in summer, but the Setagaya Tamagawa Fireworks