Your little one says they want to be a doctor, but it's the four-legged patients he/she wants to treat. A real veterinarian will expose kids to know-how about animal check-ups and pet ownership.

Your little artist will have fun with fabrias at this crafty museum playdate. Toddlers will listen to storytime skits and make textile-themed artwork, inspired by the museum’s Spun exhibition. Wed 10 a.m.-1 p.m.

Travel back in time at the Unsinkable Molly Brown’s 146th birthday celebration. Children can fish for prizes, mine for gold, decorate hats, and compete in a potato-sack race. They can also meet a look-alike of Molly Brown herself! Sun 11 a.m.-2 p.m.

Celebrate the return of summer’s colorful hummingbirds. Kids will learn all about these tiny, jewel-colored birds, including how to attract them to their own backyards with an easy bird-food recipe. Best for children ages 3-6 years old. Thu 10 a.m.

Get up-close to creepy-crawly insects! This day-long carnival includes cockroach races, insect-themed games, and a bug safari along the prairie nature trail. Budding entomologists can also learn how to identify bugs found in their own backyards. Sun 10 a.m.-5p.m.

What do trains have to do with dinosaurs? Early railroad crews often unearthed dinosaur fossils as they laid down tracks here in Colorado. Little ones can meet a stegosaurus dinosaur, dig for fossils, and learn all about dinosaurs during storytime. Sat 9 a.m.-5 p.m.

Your little entrepreneur’s first company can be right at the end of your driveway. Kids can take part in a nationwide celebration of learning business practices through seeing a lemonade stand from goals all the way through profit. Pickup a backpack from Young Americans Bank or any Dependable Cleaners—each filled with a planning workbooks and other goodies.

Colorado's ecyosystem is a wonderland for budding biologists and naturalists. Naturalist Ann Sarg will introduce kids to the creatures that call Roxborough State Park home—like bears, birds, and mule deer. They’ll play games, complete an ecology workbook, and explore the park to learn how plants and animals fit into their habitat.

Are your tykes bursting with energy now that school is over? A day of fun and sun at Colorado’s largest outdoor kids festival will help wear them out. Rambunctious youngsters will love the giant maze and pony rides, while aspiring singers can belt it out with karaoke. Another highlight is the touch-a-truck exhibit, where kids can scramble over real police cars, motorcycles, and fire engines.

Grab the kids and camp tent for a deep-woods Father's day. Spend the afternoon exploring the woods on nature and wildlife walks. As the sun sets, put an eye to the available telescope for stargazing lessons on the illuminataed night sky. Bring your tent to camp outside, or sleep inside a hostel-style bunkhouse.