Fisheries Wholesale Market Building
The Fisheries Wholesale Market building is where domestic and foreign fisheries gather to auction off their catch to seafood brokerages and big-volume buyers. This is also the place where the famed tuna auction takes place from 5.30am to 6.30am.
While visitors aren't allowed on the market floor, there are several observation windows on the third floor looking down at the tuna auction from above. There is, however, a special tuna auction observation deck closer to the action on the same level, but you'll need an advance reservation to get into the area (more on this below).
Additionally, there are a few dedicated windows from the galleries above, allowing you a look into areas of the market where other fresh seafood is sold. You can differentiate between the areas by the colour of the floors. The tuna auction zone is green, while the general seafood area is grey.