TL;DR
Denver serves as the gateway to outdoor adventures during Outside Days, with options including hiking iconic peaks, fishing, exploring mountain towns, and enjoying the city’s vibrant craft beer scene. Confirmed activities include visits to Red Rocks, mountain hikes, and local excursions; details on reservations and permits are still emerging.
Denver offers a wide array of outdoor activities and nearby mountain town excursions for visitors attending Outside Days, with confirmed options including hikes at Red Rocks, mountain summits, and local fishing spots.
Visitors to Denver during Outside Days can explore the iconic Red Rocks Amphitheater, which hosts concerts and outdoor events, and enjoy scenic hikes on nearby trails leading to fourteener summits such as Mount Blue Sky, Grays Peak, and Torreys Peak. Reservations and permits are required for some activities, including mountain summit hikes and fishing in Colorado’s rivers.
In addition to outdoor adventures, the city boasts the Denver Beer Trail, a route through its numerous breweries, and nearby mountain towns like Estes Park and Idaho Springs, which offer historic sites, wildlife viewing, and local dining experiences. Estes Park serves as the gateway to Rocky Mountain National Park, while Idaho Springs provides Old West charm and scenic cable car rides.
Why It Matters
This matters because it encourages visitors to maximize their outdoor experience during Outside Days, boosting local tourism and economic activity. It also highlights the diverse outdoor options available, from mountain peaks to urban fishing, supporting Colorado’s reputation as an outdoor recreation hub.

Columbia Mens Transverse Waterproof Hiking Boot, Black/Mountain Red, 11
OMNI-TECH: For prolonged exposure to moderate rain and snow. Multilayered, waterproof, seam-sealed construction that allows the inside to…
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
Background
Denver has long been considered the gateway to the Rockies, with Outside Days celebrating outdoor adventure culture. Previous years have seen increased interest in mountain activities, and recent developments include new reservations systems for popular hikes and the expansion of local outdoor attractions. The festival itself draws visitors from across the country, seeking both music and outdoor recreation.
“Our city offers unparalleled outdoor experiences, from iconic concert venues like Red Rocks to challenging mountain hikes and scenic mountain towns.”
— Visit Denver spokesperson
“Fishing permits are required for certain rivers, and we advise anglers to plan ahead for permits and regulations.”
— Colorado Parks and Wildlife official

Animas River, Colorado Fishing Map
Quickly Identify Hotspots with Detailed Access and Float Data
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
What Remains Unclear
It is not yet clear how many visitors will participate in specific activities like mountain hikes or fishing, as reservation systems and permits are still being finalized. Details on event-specific outdoor programs are still emerging.

Red Rocks Colorado Amphitheater Outdoor Concert Venue Night T-Shirt
Lightweight, Classic fit, Double-needle sleeve and bottom hem
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
What’s Next
Next steps include finalizing reservation and permit processes, releasing detailed schedules for outdoor programs, and providing updates on any capacity limits or safety protocols during Outside Days. Visitors should monitor official sources for the latest information.

Cascade Mountain Tech Trekking Poles, Shaft Material: Aircraft- grade 6061 Aluminum with Adjustable Locks Expandable to 54" (Set of 2), Cork Grip, Orange, Extended Grip Material: EVA
Exceptional Quality and Comfort – Crafted from aircraft-grade 6061 aluminum, each 10-ounce trekking pole is highly durable in…
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
Key Questions
Do I need reservations for mountain hikes around Denver?
Yes, some popular hikes, especially those to fourteener summits like Mount Blue Sky, require timed entry reservations. Check with local authorities or park services for specific requirements.
Are fishing permits required for rivers near Denver?
Yes, fishing permits are required for certain rivers such as the Colorado River and Blue River. Permits can be obtained through Colorado Parks and Wildlife and should be secured before fishing.
What are some recommended mountain towns to visit near Denver?
Estes Park, the gateway to Rocky Mountain National Park, and Idaho Springs, known for its Old West history and scenic cable car, are popular nearby destinations.
What outdoor activities are most popular during Outside Days?
Hiking iconic peaks, attending concerts at Red Rocks, fishing, exploring mountain towns, and brewery tours are among the most popular activities.