Uchimizu ] refers to the action of sprinkling water on the streets in the summer and has been a tradition in Japan for many many moons. The water keeps the dust low and cools off the immediate area.
The Uchimizukko Daishugo event makes this tradition more interesting by getting loads of maids and cosplayers to do the watering. This years Uchimizu took place recently and marks its 10th anniversary where they managed to lower the air/ground temperature from 34.4°C/38.4°C to 32.4°C/30.2°C by the end of the event.
Organizers, maids and cosplayers introduce themselves to the folks who have gathered to watch the event.
Some of the maid cafes that made it to the event are:
秋葉原カルチャーカフェ シャッツキステ, akihabara voice cafe bar 声優のたまご, ＠ほぉ～むカフェ, あにぷる学園メイド学科, 居酒屋メイド倶楽部 FancyCat, Cafe Matsuri 茉莉珈琲館, JAM Akihabara, 戦国メイドカフェ＆バー もののぷ, 天使と悪魔のcafe&bar pray, 和style.cafe AKIBA店 和茶屋娘, 忍者メイドカフェ＆バー おんみちゅ and more.