Stop over in Japan - GREAT IDEA
We arrived safely in the UK.
Enjoyed Tokyo. The Urban Adventures team were really good and we had the same guide for both tours.
Once we got used to the subway system we had no trouble getting around Tokyo. We were able to buy a subway pass which cost 1200 yen and allowed 48hours of unlimited subway rides. There is also a 24 hour pass.
I would definitely go to Japan again. It was clean and people friendly.
So thank you for suggesting we have a stopover there.