Kumano Fireworks Festival熊野大花火大会 · Kumano Ō-hanabi Taikai

When it is held

The Kumano Fireworks Festival (熊野大花火大会, Kumano Ō-hanabi Taikai) is held every year on August 17, whatever the day of the week, on the Shichiri-mihama coast (七里御浜) in Kumano, Mie Prefecture. It is organized by Kumano City and the Kumano City Tourism Association. The 2026 festival took place on Monday, August 17.

The show

About 10,000 shells are launched, making it the largest fireworks festival in the Kishū region, and it draws crowds of well over 100,000 from across Japan. Its signature pieces use the coast itself as a stage.

• Sanshakudama kaijō jibaku (三尺玉海上自爆): a three-shaku shell, 90 cm across and weighing 250 kg, is set on a steel raft about 4 m square, anchored about 400 m offshore and set off where it sits. It opens into a flower about 600 m across, and the blast is powerful enough to bend the steel raft.
• Onigajō ōjikake (鬼ヶ城大仕掛け): the finale at Onigajō (鬼ヶ城), a stretch of rocks and caves carved by the rough waves of the Kumano Sea. Creative fireworks on themes of the seasons are followed by "Gantō no todoroki" (巖頭のとどろき), a barrage of large shells and many jibaku (自爆), shells set off on the spot, whose roar echoes off the cliffs. The roar is said to feel like an earthquake of intensity 7 on the Japanese scale.

Because the shells burst low over the sea, the long trails of light they leave on the water are part of the spectacle, something the organizers single out as unique to sea fireworks.

Origins

The festival grew out of fireworks offered to console the spirits of the dead (諸精霊供養). It has since become the largest fireworks show in the region, but it still keeps its fixed date of August 17.

The setting

Shichiri-mihama is a long gravel beach on the Kumano coast, described by the broadcaster CBC as the longest gravel beach in Japan. Onigajō is a line of sea cliffs and caves eroded by the waves. Together they give the festival its sound: the blasts of the jibaku reverberate off the rock and through the caves, and viewers feel them in their bodies as much as they hear them.

Watching

• The festival is watched from the Shichiri-mihama shore. Check the tourism association's site for the year's program and the viewing and parking arrangements, which can change; in 2026 one of the temporary car parks could not be used.
• If you cannot travel to Kumano, the festival has been streamed live in recent years, including on YouTube in 2025 and 2026.
• August 17 falls on a different day of the week each year, so it is often a weekday; plan time off and accommodation early.

Getting the most out of it

The jibaku and the Onigajō finale are the reasons people travel here. Stay for the whole show rather than leaving early to beat the crowds: the finale is the loudest and most dramatic part of the evening.