Swim at leisure in the indoor heated pool until evening

About this spot

The Sub Arena heated pool inside the Yokosuka Sports Arena (Yokosuka Arena). In 2026 it is available year-round from April 1, with hours from 9:30 a.m. to 9:00 p.m. Being an indoor facility, it is unaffected by the weather, so you can enjoy water play as planned even on rainy days, which is its appeal. Because the water temperature is managed, it stays comfortable in any season. Enter at an easy pace in the afternoon and spend a relaxed time swimming and floating until evening.

Season & hours

Tips

It is reassuring to check fees, whether items are available to rent, and how busy it is on the official website in advance. Visitor numbers rise on weekend afternoons, so entering early is recommended. A swim cap may be required, so bringing one is reassuring.

Best time to visit

Entering just after noon gives you plenty of afternoon time and lets you swim until evening

Access & map

Yokosuka-shi · Sports Arena (Yokosuka Arena)