Through August 22. Beat the heat—and get in a little midsummer learning—at “Just Add Water,” the newest exhibit at the Children’s Museum of Denver. Opening Friday, the outdoor display explores the ways water moves and how humans try to control the flow. Expect lots of splashing, spraying and sprinkling, and prepare to get wet. Seriously: Bring extra clothes or wear ones that will dry quickly. For Friday’s opening celebration, Swallow Hill Music and radio station Jammin’ 105 will be providing cool tunes. 9 a.m. to 4 p.m. weekdays (open until 7:30 p.m. Wednesdays); 10 a.m. to 5 p.m. Saturdays and Sundays. Children’s Museum of Denver, 2121 Children’s Museum Drive; 303-433-7444. Admission is $8 for guests ages 2 to 59; $6 for 1-year-olds and seniors age 60 and older. mychildsmuseum.org

Sunday. Now more than ever, it’s a good time to be a geek: Celebrate science this Father’s Day at National GeekDad Day at the Denver Museum of Nature and Science. The first-ever GeekDad Day, sponsored by Wired magazine and the Department of Education, hopes to draw families into the museum for a new kind of Father’s Day. Check out the museum’s collection of regular exhibits and participate in special GeekDad activities like crafts, face painting and a “Secrets of the Dioramas” tour. Mr. Bones, the paleo-puppeteer, will be showing off his life-size dinosaur puppets, too, and “Creature Teacher” the Jungle Lady lets kids see and touch exotic animals. 9 a.m. to 5 p.m. Sunday. Denver Museum of Nature and Science, 2001 Colorado Blvd.; 303-370-6000. Admission is free—it’s an SCFD Community Free Day. dmns.org

-Kathleen St. John

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Father’s Day:

If dear ol’ Dad is a BBQ lover, don’t miss the Town of Frisco’s Colorado BBQ Challenge June 14-16. My family went last year for the first time and we are converts. Not only is there fantastic food from about 60 top BBQ teams across the nation, but it’s super kid-friendly with a 5K Bacon Burner run (you’ll need it after all the food you’re eating) and my kids’ favorite: pig races.

You can’t make this stuff up.

They also have live music, an exclusive chef demo with Jenna Johansen from Bravo TV’s “Around the World in 80 Plates” and a Breckenridge Distillery Whiskey Tour (perfect for Dad). The event is free and attendees can purchase hog-back bucks, Frisco’s barbecue currency, to pay for food and drinks and use them at participating retail stores and restaurants along Main Street.