The Capitol Hotel Tokyu

A pond, small museum and greenery make this more of an exploring park than a big equipment destination.

Worth knowing about for the unusually large family rooms, including layouts with tatami and much more breathing room than the Tokyo norm.

A high-end option that explicitly accommodates children in several room types and has a pool with child swimming hours for ages four and up.

High floor views and an indoor pool make this a good splurge if you want plenty of wow without leaving the hotel.

A calmer central-Tokyo base with apartment-style rooms that work much better for families than a standard tiny hotel room.

Rooms of moving light and digital art flow into each other, so kids can wander without feeling like they are in a normal museum.