Off to Japan in Sept, Suggestions?

[robm3]

We're staying in Tokyo for five days and then have a free 7 days with no bookings yet.
I was thinking Kyoto but can anyone offer some decent advice on anywhere else?

I'm also with my family so two kiddies 10/12

[robm3]

Guys,
Thank you for the suggestions, some great ones in there!

I'll pull together an agenda over the next few months and run it past some of the regulars to Japan.