Wuhan Haichang Polar Ocean Park is a large oceanarium and polar-animal park north of central Hankou. It has sharks, dolphins, sea lions, manatees, walruses, tortoises, penguins and other crowd-pleasing marine exhibits.
It is part of a national chain rather than a one-off local museum, but it is still a substantial family stop if you are travelling with children or want an indoor break from Wuhan's heat.