On the second Saturday of every month, CSU Spur opens its three buildings at the National Western Center to the public for free. On Saturday, Oct. 10, from 10 a.m. to 2 p.m., the theme is Día de los Muertos.
The schedule mixes culture and science across the Hydro, Terra and Vida buildings, The Shop and The Backyard. Families can make papel picado and paper flowers, visit an ofrenda, watch music and dance, see horse demonstrations and try the mock labs and clinics that let kids play scientist or veterinarian. A recycling-themed CANstruction build is also on the list. Virtual reality stations are for ages 9 and up. Food, coffee and drinks are for sale, and CSU Spur notes that activities may change or be cancelled.
It is not a homeschool-only day, but it is one of the best free field trips in Denver for mixed ages: water science, food and agriculture, and animal health under three roofs, with no admission and no registration mentioned. If a weekday suits your family better, CSU Spur’s Homeschool Day is Wednesday, Oct. 14.
What to know
- When: Saturday, Oct. 10, 2026, 10 a.m. to 2 p.m.
- Where: CSU Spur, 4777 National Western Drive, Denver, CO 80216
- Cost: Free; food and drinks available for purchase
- Ages: Family-friendly; virtual reality is ages 9 and up
- Registration: None mentioned
- Subjects: Science and STEM, arts and culture
- Details: official event page
More like this: Denver, Free field trips, Free things to do, Denver Firefighters Museum free day (Oct. 10), Denver Museum of Nature & Science free day (Oct. 11)



