The real Aspen thrives on the trails. While the town built its reputation on luxury resorts and historic mountain charm, the heart of Aspen lives out on the dirt singletrack, alpine ridge lines, and snow-dusted tracks. Whether the peaks are covered in three feet of winter powder or bright summer wildflowers, finding the best things to do in aspen colorado comes down to getting outside and moving.

At Sun Dog Athletics, we’ve spent over three decades guiding guests through the valleys, passes, and backcountry around Aspen and Snowmass. Here’s a straight-to-the-point local breakdown on what to do in aspen colorado no matter when you land here.

A Quick Overview of Aspen as a Year-Round Destination

Skiing gets the headline, but Aspen works hard all 12 months.
If you're asking what is there to do in aspen colorado outside of January, the answer is: plenty. Summer brings dry mountain air, crisp mornings, and endless miles of dirt singletrack and high-alpine hiking routes. Winter offers quiet snowshoe paths, groomed Nordic tracks, and winter biking right alongside the downhill runs.

When you're mapping out aspen colorado what to do options, look past the chairlift. The best outdoor activities to do in aspen colorado happen on the trails, far away from resort crowds.
Winter Activities in Aspen, Colorado

You don't need to spend all day waiting in lift lines to enjoy an Aspen winter. Some of the best snow days happen deep in the woods where it’s dead quiet.

Snowshoeing Adventures

Snowshoeing is as simple as walking, but it opens up deep backcountry views that downhill skiers never see. Embarking on guided snowshoeing adventures lets you wander through silent aspen groves and snow-dusted valleys without stressing over route finding or winter safety. It’s easy to pick up, low-impact, and works for any age or fitness level.

Cross-Country Skiing in Aspen

The Roaring Fork Valley runs the Aspen/Snowmass Nordic Trail System—over 60 miles of free, groomed trails connecting town to the mountain backdrop. Trying cross country skiing in Aspen delivers a full-body workout paired with non-stop views:

• Classic Skiing: You stay in pre-cut parallel tracks using a simple diagonal kick-and-glide motion. Great for first-timers.

• Skate Skiing: A faster, skating motion across smooth groomed snow. Higher energy, but incredible fun once you find your rhythm.

A quick session with an instructor dials in your balance so you aren't burning out your legs on the uphills.

On-Snow Fat Biking

Fat bikes feature wide, low-pressure tires built to grip packed snow. If you enjoy riding dirt in July, rolling over snowy singletrack in mid-winter is a total rush. Taking mountain biking lessons or hopping on an on-snow fat biking excursion with a local guide gives you an entirely new way to experience winter trails.

Other Winter Activities Worth Mentioning

• Downhill Skiing & Snowboarding: Four separate mountains on one ticket (Ajax, Highlands, Buttermilk, Snowmass).

• Ice Skating: Indoor ice at the Aspen Ice Garden or open-air town rinks.

• Sleigh Rides: Horse-drawn trail rides out to mountain dinner spots.

• Hot Springs: Easy day trips down the valley to Glenwood Springs.

• Winter X Games: Pro action sports athletes competing at Buttermilk every January.

• Aspen Art Museum: Free admission, contemporary art exhibitions, good indoor rest-day option.

• Downtown Après: Laid-back coffee shops, craft breweries, and fireside dining downtown.

Summer Activities in Aspen, Colorado

When snow melts into dirt, Aspen shifts gears. Clear skies and cool mountain air make summer in the Rockies tough to beat.

Guided Hiking Tours

Hundreds of miles of trail branch into the White River National Forest. Booking guided hiking tours skips the headache of trailhead parking permits, navigation guesswork, and altitude pacing. You get straight to alpine lakes, open wildflower meadows, and high-ridge views with a local who knows the terrain.

Mountain Biking Lessons and Guided Rides

Aspen and Snowmass hold official Gold-Level ride status, featuring world-class singletrack for every skill level. Taking private mountain biking lessons refines your body positioning, cornering, and braking. You ride smoother, feel safer, and save your energy for the trail.

Road Biking and E-Biking Tours

If you prefer pavement, ride the iconic climb up Independence Pass or cruise Maroon Creek Road. Prefer a relaxed pace? E-bikes make high-altitude riding effortless. You can cruise the paved Rio Grande Trail along the river without blowing out your quads.Reach out to set up a custom route for a road biking or e-biking tour. 

Other Summer Activities Worth Mentioning

• Aspen Music Festival: Outdoor classical music performances all summer long.

• Maroon Bells: Iconic twin peaks and reflection lake photos (book shuttle passes early).

• Whitewater Rafting: Guided runs on the Roaring Fork and Colorado Rivers.

• Fly Fishing: Wade into gold-medal trout streams with local anglers.

• Aspen Saturday Market: Downtown street market packed with local produce, crafts, and food.

• Golfing: Mountain courses featuring sweeping views and thin-air distance.

• Paragliding: Tandem flights launching off mountain slopes above the valley.

• Rock Climbing: Guided granite routes for all experience levels.

• Silver Queen Gondola: Ride to the top of Aspen Mountain for lunch and lawn games.

Best Way to Experience Aspen: Guided vs. Self-Guided

Exploring downtown on foot works fine for shopping or dinner. But hitting backcountry mountain trails is a completely different story.

With mountain rescues growing in the Aspen area, venturing into high-altitude terrain unguided—where weather shifts fast and trail conditions change rapidly—adds unnecessary risk to your vacation.

Choosing a professional guide allows you to minimize risk and maximize safety and fun. Working with local experts means no need for mountain rescues and zero stress over gear fitting, trail permits, or navigation error. Making the most of each adventure comes naturally when you leverage our unmatched over 30 years of instruction and guiding—delivered with a 100% clean safety record and guest satisfaction.

Frequently Asked Questions

What is Aspen, Colorado known for?

Big-mountain scenery, deep snow, clear summer trails, and a real outdoor culture. Beyond skiing, it’s famous for mountain biking, hiking, Nordic trails, and summer arts events.

What is there to do in Aspen in the summer?

Guided hiking, mountain biking, e-bike cruises, fly fishing, rafting, outdoor music concerts, and downtown weekend markets.

What is there to do in Aspen in the winter?

Downhill skiing, cross-country skiing, snowshoeing, winter fat biking, hot springs visits, and town dining.

Is Aspen good for beginners in outdoor activities?

Yes. The valley offers flat river paths, beginner dirt loops, and gentle Nordic tracks. Working with an instructor builds confidence and solid technique right away.

Do I need to book a guide in advance?

Yes. Peak summer and winter months book out early. Securing your dates ahead of time guarantees your gear and private guide.

Plan Your Aspen Adventure with Sun Dog Athletics

Sun Dog Athletics has been guiding and coaching in Aspen for over 30 years. Founded by Erik Skarvan, we offer 100% private instruction and fully customized outings—hiking, biking, cross-country skiing, and snowshoeing—tailored strictly to your goals and pace. We bring unmatched local experience and a 100% clean safety record and guest satisfaction to every single outing.

Explore our full list of pricing and packages

Ready to hit the trails? Book your adventure