Playgrounds and things to do with kids in Boston

Three floors of hands-on play on the water, from a giant climbing structure to a real Japanese house and a bubbles room.

Costumed reenactors and replica ships, where kids get to throw tea overboard.

Gorillas seen face to face through the glass in the Tropical Forest, plus giraffes, lions and a children's farm.

Lightning shows in the Theater of Electricity, a planetarium and hands-on exhibits across a building on the river.

A four-story Giant Ocean Tank circled by a ramp, with penguins below and sea lions outside.