The phrase, “let’s go to the Denver Zoo,” should not be thrown around lightly when you have kids. Planning is key: On a hot summer’s day, a misstep could lead to a meltdown in front of the penguins. But when planned correctly, this is an outing filled with stimulation, education, and, of course, good old fun. From sea lion feedings to watching peacocks stroll on the sidewalk, the zoo can be a different experience every time your family goes this summer.