Hi-Sour 35th Anniversary

Head out to Kameido to celebrate 35 years of the Hi-Sour soda mixer, which is 'often mistaken for an alcoholic beverage', if we are to believe manufacturer Hakusui-sha's brilliant English website. Best known for the bootylicious commercials used to promote it, Hi-Sour will be available as an ingredient in nine different drinks on the night, while local bars and restaurants also set up stalls to serve hungry imbibers. Anyone wearing a yukata will receive a free drink, so go ahead and dress up for the occasion.