At the Glazer Children’s Museum, everything is new this summer, because the facility itself is just a year old. Within the bright 53,000-square-foot space, there are more than 170 hands-on, minds-on “interactivities,” with plenty of quiet nooks to regroup. “Water’s Journey,” a 35-foot-tall climbing structure, is one of 12 themed galleries that help kids explore everything from the role water plays in the world to the history of aviation. A popular place to be is “KidsPort,” an expansive water table where kids manipulate shipping channels and work with tides to move boats.