National Geographic Travelさんのインスタグラム写真 - (National Geographic TravelInstagram)「Photos by Michael Yamashita @yamashitaphoto Summer in the city, Tokyo, Japan There's no question that given the heat, humidity, and population of Tokyo in the summer, the throngs at any swimming pool there are going to test the limits of crowd control and sanitation. Japan, however, is prepared for this and manages to keep everyone happy and cool—no matter how jam-packed the pool—by moving the water rather than the swimmers. While not exactly conducive to laps, giant wave pools surge with swells a meter or higher, drenching stationary bathers so they don't need to swim to cool off. Other pools feature circular courses with a current that keeps everyone moving together in the same, very orderly, direction. Japanese people, by tradition and habit, are among the most cleanliness-conscious in the world. The water in these pools is clean enough to drink! These photographs were taken in 2001. Though closed at the onset of the COVID-19 pandemic, water parks reopened on July 13 with limited reserved admission, health checks, social distancing, and mandatory masks for patrons and staff, as well as detailed instructions in coughing etiquette. #waterpark #tokyosummer #summertime」9月7日 21時03分