Yokosuka Kaikoku Fireworks 2026 commemorates the port city's opening with a bay-wide evening on September 27, 2026, firing from 6:00 p.m. across waterfront venues including Kazakusa Park and the seaside fishing park. The distributed, free format spreads the show along the shoreline — pick a park, claim grass or seawall. No parking is provided and no food stalls are organized, so dinner in town beforehand is the pattern.
Yokosuka's identity is its harbor, and the Kaikoku — 'port opening' — fireworks put that harbor front and center. On September 27, 2026, from 6:00 p.m., launches are staged for an audience scattered across several waterfront parks, all free to enter. The multi-venue layout is the event's character: rather than one packed prime spot, the shoreline offers a sequence of lawns and seawalls, each with its own sightline over the bay. There is no event parking and no food-stall operation, so the pattern is dinner in the city's dining districts, then a walk to the water. The Yokosuka tourism office (open 9:30 a.m.–5:00 p.m.) publishes the venue map and schedule each year — check before choosing your park.
A free, multi-park bayfront show commemorating Yokosuka's port-opening history.