Nagashima Jumbo Seawater Pool in Kuwana, Mie Prefecture, saw heavy crowds on Marine Day, as families and holiday visitors headed out to cool off in intense summer heat. The holiday marked the final day of a three-day weekend, helping drive traffic to one of the region’s best-known leisure spots.
According to the report, demand for popular attractions was so high that some guests faced waits of up to two hours for a waterslide. The long lines reflected the surge in visitors looking for relief as temperatures rose following the end of the rainy season in the Tokai region.
The packed conditions highlighted how quickly outdoor water parks become major destinations once summer weather settles in. With clear seasonal conditions replacing weeks of rain, many families appeared eager to make the most of the holiday at the large pool complex.
The scene in Kuwana also underscored the broader impact of midsummer heat on leisure patterns in Japan, with water-based attractions drawing strong turnout during holiday periods. At Nagashima, that meant a busy day of swimming, long queues, and a clear sign that peak summer demand has arrived.
