A pleasure boat crashed into a breakwater off the coast of Ukishima-cho, Kawasaki, injuring 10 people on Monday [1].

The accident highlights the risks associated with nighttime maritime navigation during high-traffic public events, where limited visibility can lead to severe collisions.

The incident occurred shortly after 7 p.m. [1]. The vessel was carrying men and women between their 20s and 50s who had set sail to watch a fireworks display in Yokohama [1], [2].

Emergency responders reported that nine people were transported to hospitals [1]. Among them, two individuals suffered serious injuries due to bleeding [1]. A spokesperson for the Metropolitan Police Department said all injured passengers remained conscious [1].

Reports from the scene described the area as being completely dark with no lights [2]. The bow of the pleasure boat was found riding up onto the breakwater, with only a small portion of the structure visible in the darkness [2].

One passenger said the boat was operating specifically to go see the fireworks [1]. The collision took place south of the Kawasaki Ukishima Junction on the Shuto Expressway, an area located south of Haneda Airport [1], [2].

Authorities are investigating the cause of the crash to determine if navigational errors or environmental conditions contributed to the impact [1].

Ten people were injured, including two seriously, while traveling to a fireworks display in Yokohama.

This incident underscores the dangers of navigating coastal waters during major festivals. The combination of nighttime darkness and the congestion of vessels attempting to secure viewing positions for fireworks often increases the likelihood of maritime accidents, particularly when navigating near fixed structures like breakwaters.