In the beginning of this year, The Tsukiji Fish Market in Tokyo reopened its tuna auctions to the public after a ban instituted last December. This allowed tourists to resume watching early morning tuna auctions.  
Although the famed fish market has established a worldwide reputation, it put a ban in place last year to keep away "ill-mannered foreign tourists". The market also cited hygiene risks and interference from curious onlookers attempting to touch the tuna and take flash photos.
After the reopening, the market keeps asking tourists to avoid touching the tuna with their hands or using their flashes when taking photos of the auction. The auction price of a high-class tuna tops one million yen. According to the Tokyo metro government, more than 500 tourists come to watch the tuna auctions at 5:30 each morning, and more than 90 percent of the visitors are from overseas.

Meanwhile, lots of three-wheelers come and go in the market yard. They are battery-powered transporters called "turret trucks," and about 800 units are used only inside the Tsukiji Market. The zero-emission trucks, made by K.K. Asaka Seisakusho, Saitama, house 8 units of 6-volt batteries in each body and transport tuna and other fish to buyers every morning. The battery of the eco-friendly trucks, however, is astoundingly high at 90,000 yen per unit (720,000 yen total per one truck), according to a used auto parts marketer. The market of turret trucks has not been opened yet.