✓ New play equipment "Wide Slider" for parent-child fun! ✓ "Cool Area" for midsummer snow play opens, with limited-time "Snow Spreading Experience"! ✓ Extended operating hours in conjunction with Saitama Seibu Lions' "Ao Fes 2026"! ✓ July 20 (Mon, Hol) "Marine Day Special Day," plus many events and workshops during summer vacation! The "2026 Water Festival" at Sayama Ski Resort (Tokorozawa City, Saitama Prefecture), operated by Seibu Recreation Co., Ltd. (Head Office: Tokorozawa City, Saitama Prefecture, President: Tatsuya Yoda), with the concept of "Is there the sea in Tokorozawa!? Friends of the sea gather!", will start daily operations as the "Super Water Festival" from July 10 (Fri) to August 31 (Mon). At the "Super Water Festival," starting July 18 (Sat), new play equipment "Wide Slider" will be introduced, along with the opening of Sayama Ski Resort's unique "Cool Area" where you can play with "snow," and a limited-time "Snow Spreading Experience." Additionally, as a special project unique to the Seibu Group, operating hours will be extended until 6:00 PM on select dates in conjunction with the "Ao Fes 2026" event hosted by Seibu Lions Co., Ltd. (Head Office: Tokorozawa City, Saitama Prefecture, President: Tsuyoshi Okumura). Events will also feature appearances by Leo, the official mascot character of the Saitama Seibu Lions, and the idol sister duo "Kaoru and Nagisa" from the shopping street of Seibuen Amusement Park (Location: Tokorozawa City, Saitama Prefecture, General Manager: Tomohiro Nishida). On July 20 (Mon, Hol), Marine Day, a "Marine Day Special Day" themed around sea creatures will be held. This one-day event is perfect for creating your first summer vacation memory, allowing you to enjoy special content while feeling the presence of sea friends. All visitors on this day (excluding those aged 2 and under) will receive a coupon for future use at the "2026 Water Festival." Furthermore, during the summer vacation period, there will be a TV Saitama Pre