Mexico’s long celebrated Día del Niño -- or Children’s Day -- is April 30, but the party begins in Denver Saturday with free events at various arts and culture centers.

The annual event is considered to be the Rocky Mountain region’s largest Día del Niño celebration, with 2015’s festivities having more than 23,000 participants.

On Saturday, there will be free general admission to the Denver Museum of Nature & Science and Boulder Museum of Contemporary Art.

On Sunday, guests can get free admission into the Denver Art Museum, History Colorado, Clyfford Still Museum, Denver Public Library and Byers-Evans House Museum.

The Consulate General of Mexico and Mexican Cultural Center have teamed up with seven organizations to recognize this year’s Día del Niño theme “An International Celebration of All Children.”

The seven organizations involved will not only offer free admission to the general public but also feature music and dance performances, artmaking activities and special appearances by Colorado Rockies’ mascot Dinger.

Denver’s Día del Niño event officially begins Saturday at 9 a.m. but a sneak peak of the weekend’s programming will be held Thursday, April 21 from 10 to 11 a.m. on Acoma Plaza near the Denver Art Museum.

Find out more about the program here: