Akane
My family will be in Tokyo for 3 nights. We’ll be going on tours in the daytime, but will have the evenings to ourselves. What are some things we can do at night with our kids with us?
My kids enjoyed the amusement parks, Disneyland/Disney Sea, and Tokyo Dome City which are both open until about 10 pm. We also went to the aquarium in Shinagawa Prince Hotel also open until 10 pm
Akane
You can try observation decks to see the spectacular night view. There are actually a lot of them in Tokyo. Like Tokyo Sky Tree (open until 10pm), Tokyo Tower (open until 10pm), Mori Tower in Roppongi Hills (open until 1am).