In summer, Yomiuriland amusement park opens its five outdoor pools for some wet and wild fun. You can pretend you’re swimming in a particularly choppy sea in the giant wave pool (complete with a sandy 'beach'), or hurl yourself down one of three different slides.
The Giant Sky River may feel a bit intimidating as you scale its stairs, but it's undoubtedly the highlight for thrill-seekers: the 25m-high and 386m-long mega-slide is navigable only with the reassuring presence of a large rubber float.
Kids will love the adorable Soreike Anpanman pool, which features the rosy-cheeked heroes of the popular comic series.
Open from June 29 to September 16 (closed July 2-5, 8-12, September 5 & 9-13)