Tsukiji Fish Market until what time?

I have kids 5 and 7 who won't get out of bed early. What is the latest we can get to the markets and still see interesting things? I know we won't catch the tuna auction when we are awake. Thanks

I would say until about 9:00 am. That is usually when the market starts to wind down.

Also be warned that the sushi restaurants across from the market are always busy in the morning.

I agree with around 9am: we have been there at that time 3 times, and been fine with seeing amazing looking seafood in the market, but the market is certainly beginning to wind down after that.
With children, be REALLY careful of them: the guys on their motorised carts work in the market, are very busy, and have right of way at all times: kids suddenly in their way would not be good for anyone.
Enjoy!

Thanks for the info. We will aim for 8 or 830. I think we can manage that.

Luckily our kids live in a busy area with cars and will hold hands as instructed so we will keep them close, good advice. Thanks.