Nov 20, 2014 · Toyosu 豊洲. Toyosu in Koto-ku, eastern Tokyo is a large human-made, reclaimed island originally created in the late 1930's, close to Odaiba to the south. Toyosu is the location of one of Tokyo's largest shopping malls LaLaPort and is the new venue of the relocated Tsukiji Fish Market, now called Toyosu Market, which opened in October 2018.