Douglas County, Colorado
Free Things to Do in Douglas County
You don't have to spend a dime to have a full weekend here. Free concerts, farmers markets, miles of trails, First Fridays, and community events — across Castle Rock, Parker, Highlands Ranch, Lone Tree, and Castle Pines.
By Connor Tien, DougCo Social · Updated August 2026
Free Things to Do
Free summer concert series
Nearly every town runs one — Tunes for Trails (Castle Rock), plus Castle Pines, Highlands Ranch, Parker, and the Outlets. Free, all summer.
The full free concerts guide →Farmers markets
Free to wander — Castle Rock, Parker, Highlands Ranch, and Sterling Ranch, May through October. Bring cash for the vendors.
Hiking & open space
Miles of free trails and open space — the Backcountry Wilderness Area, ridge and creek trails, and quick town-park loops.
A Sanctuary Center in Sedalia
Free, open every day at Wolfensberger and 105 — a stone labyrinth, wishing trees, a sacred geometry garden and a chapel with a lending library.
Devils Head Lookout hike
A free classic — climb to the last staffed fire lookout in Colorado for a big Rampart Range view.
First Fridays in downtown Castle Rock
Free summer evenings of music and open shops downtown. Check the calendar for the next one.
Leaf-peeping in fall
Free scenic drives and hikes for the best foliage across the county each autumn.
Free family & community events
Story times, library programs, park days, and community nights — filter the calendar for free family events.
Holiday markets & tree lightings
Browsing is free — Castle Rock's Starlighting, holiday markets, and craft fairs run all season.
Looking for the full picture? See everything to do in Douglas County, the guide to things to do with kids, or browse the events calendar.
FAQ
The free summer concert series (Tunes for Trails and town series), farmers markets, hiking and open-space trails, First Fridays in downtown Castle Rock, library and community events, fall leaf-peeping, and holiday markets and tree lightings. All are free to attend.
Yes — library story times and programs, free park and open-space days, farmers markets, First Fridays, the free town concert series, and seasonal community events. Filter the events calendar for free family events.
Castle Rock’s Tunes for Trails at Miller Park Amphitheater, plus free series in Castle Pines (Elk Ridge Park), Highlands Ranch, Parker (Discovery Park), and every weekend at the Outlets at Castle Rock. See our free summer concerts guide.
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