Visitors formed long lines before daybreak on Tuesday to catch a glimpse of Tokyo's renowned tuna auctions — now at the Toyosu wholesale fish market — as an observation deck opened to the public for the first time since the relocation from Tsukiji in October.

"When you smell the fish you know that you're part of the auction process," said 62-year-old Canadian Jeff Graham. "You see them close up inspecting the tuna, grading it like you would any kind of commodity, so it was interesting to watch the process and how they did it."

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