It’s definitely “Tokyo-sized” Although not everything in Tokyo is overpriced simply because of location, this aquarium is. It was fairly relaxing in the evening with lovely lights and a nice cafe atmosphere outside. Kids enjoyed running around when it was less crowded.

More positive points are:

1. Elevators easily accessible for people with strollers etc. Corridors are smallish and it’s certainly easier to get around without one if your child can walk or be carried, so they provide a place to leave your stroller before entering, but they also allow you to choose to take your stroller in.
2. There is a nice baby room on the second floor for feeding and changing etc.
3. The cafe in the outdoor area provides lots of options for drinks and snacks. So even though the museum is on the small side, you can still enjoy yourself in the outdoor area for a longer time, on a date or with children.
4. We entered later in the afternoon, so we did not have to wait long in a ticket line. It was nice to be able to go right in.

Points of grievance include:

1. Exorbitant price considering what is offered compared to other aquariums
2. Extremely crowded on holidays / weekends / when tourists are plentiful
3. Tiny enclosures for animals (sea lion, for example)
4. Lack of educational information regarding each animal or exhibit that can be understood by children. (I assume the entire facility is geared more toward couples and tourists.)