TOKYO SUMMERLAND GREAT JOURNEY/ADVENTURE LAGOON: ends Sept. 30, 10 a.m.-5 p.m. weekdays, 9 a.m.-6 p.m. weekends and Japanese holidays, 9 a.m.-9 p.m. though Aug. 31; Adventure Lagoon, outdoor water park of Summerland amusement park has swimming pools, water slide and tubes, waterfalls and more; admission for Summerland (including Adventure Lagoon) is 3,500 yen adults, 2,500 yen children; summer one-day pass (swimming pool/unlimited ride in amusement park): 4,500 yen, 3,000 yen for children, 2,000 yen for infants & seniors; 600 Kamiyotsugi, Akiruno-city, Tokyo; 0.5 km from Akiruno I.C., Ken-o-do Expressway; 042-558-6511; www.summerland.co.jp/index.html. SWIMMING POOL (Tokyo): ends Aug. 31, 9 a.m.-6 p.m.; Sept. 4-5, 10 a.m.-5 p.m.; closed Sept. 1-2; features outdoor water park of Toshimaen amusement park has giant water slide called "Hydro Polis," a huge complex of water slider and tubes, and seven different types of swimming pools as well as diving pool with 1-meter and 3-meter diving boards and a 50-meter pool for competitive swimmers; summer one-day pass (swimming pool/unlimited ride in amusement park): 3,900 yen adults, 2,900 yen children A (taller than 110 cm), 1,900 yen for children B (shorter than 110 cm); swimming pool pass: 3,800 yen adults, 2,800 yen for children A, 1,800 yen for children B; 3-25-1 Kouyama, Nerima-ku, Tokyo; Toshima-en Station, Seibu Ikebukuro Line; 03-3990-8800; www.toshimaen.co.jp/pool/index.html (Japanese only).

TOSHIMAEN

SEIBU-EN SWIMMING POOL (Saitama prefecture): ends Sept. 3, 9 a.m.-5 p.m., Sept. 4-5, 10 a.m.-5 p.m.; swimming pool has water slides, wave pool, floating pool and children’s pool; 2,000 yen adults, 1,000 yen children; 2964 Yamaguchi, Tokorozawa-city, Saitama Prefecture; Seibu Yuenchi Station, Seibu Line; 04-2922-1371; www.seibuen-yuuenchi.jp/ (Japanese only).

OISO LONG BEACH (Kanagawa prefecture): ends Sept. 12, 9 a.m.-5 p.m., 9 a.m.-6 p.m. through July 30 and Aug. 30-Sept. 12; Oiso Prince Hotel’s swimming pools along the coast of Sagami Bay; one-day pass is 3,500 yen adults, 2,500 yen junior high/high school students, 2,000 yen elementary school students, 1,000 yen ages 3-6; after 2 p.m. passes are 2,500,1,500, 1,000 and 500 yen each; 546 Kokufu Hongo, Oiso Town, Naka-gun, Kanagawa Prefecture; free shuttle available from Oiso Station, JR Tokaido Line; 0463-61-1111; www.princehotels.co.jp/pool/oiso/index.html (Japanese only).

KODOMONO KUNI SWIMMING POOL (Yokohama): ends Aug. 31,10 a.m.-4 p.m., closed Wed.; water slides and tubes, children’s pool and 25m pool in Kodomono Kuni, hiking field and playground; 1,100 yen adults, 450 yen elementary and junior high school students; 700 Nara-cho, Aoba-ku, Yokohama City, Kanagawa Prefecture; 045-961-2111; www.kodomonokuni.org/ (Japanese only).

SHOWA KINEN PARK RAINBOW POOL (western Tokyo): 9:30 a.m.-6:30 p.m. until Aug. 15, 9:30 a.m.-5 p.m. weekdays in Sept.; nine different types of pools; 2,200 yen adults, 1,200 yen elementary and junior high school students, 300 yen ages 4-5; after 2 p.m. tickets are 1,100, 600 and 150 yen each; 3173 Midori-cho, Tachikawa City, Tokyo; Nishi-Tachikawa Station, JR Ome Line; 042-528-1751; www.ktr.mlit.go.jp/showa/.

YOMIURILAND WATER AMUSEMENT ISLAND WAI (Tokyo): 9 a.m.-5 p.m. and weekends and Sept. 9 a.m.-5:30 p.m. through Aug. 31; 10 a.m.-5:30 p.m., July 26-30; closed Sept. 7; outdoor water park with three different types of slides, including the Giant Sky River – a huge complex of slides — also diving boards, swimming pool, wave pool, children’s pool and 250-meter whirlpool; one-day pass (swimming pool/amusement park/unlimited ride in amusement park/sea lion show) is 4,500 yen adults, 3,500 children, swimming pool pass is 2,800 yen adults, 1,800 yen children; 4015-1, Yanokuchi, Inagi City, Tokyo; 5 km from Chofu I.C., Chuo Expressway; 044-966-1111; www.yomiuriland.co.jp/english/wai/index.html.

TOBU DOBUTSU KOEN (ZOOLOGICAL PARK) SUPER POOL (Saitama prefecture): ends Sept. 5, 9:30 a.m.-5 p.m.; features two different types of water slides including Super Slider a huge and snaky complex of slides, wave pool, children’s pool and 300-meter whirlpool also available; one-day pass (swimming pool/amusement park/unlimited ride in amusement park): 4,800 yen adults, 3,700 yen children, swimming pool pass: 2,000 yen adults, 1,000 yen children; 110, Suka, Miyashiro-machi Minami Saitama-gun, Saitama; 7.0 km from Kuki I.C., Tohoku Expressway; 0480-93-1200; www.tobuzoo.com/cgi-bin/pc_index.php (Japanese only).

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