advertisement
The Best Places to Hike in Colorado: Real Trail Stats, Permit Rules, and Honest Crowd Warnings
Fact-Checked By: Maya Whitfield, Senior Travel Editor at WakaAbuja
The best places to hike in Colorado depend entirely on your skill level and how much planning you are willing to do. For easy, accessible alpine scenery, Bear Lake Loop in Rocky Mountain National Park is a classic 0.6-mile loop. For a moderate challenge with waterfall rewards, Hanging Lake near Glenwood Springs requires a permit costing around $10 to $12 per person (confirm the latest price directly with Hanging Lake Adventure Co-op). For serious elevation gain and solitude, the 14ers in the Sawatch Range deliver, but you need to start before sunrise and watch for afternoon storms.
I have hiked in Colorado in every season, and I have made almost every mistake you can make: starting too late, packing too little water, and once, spectacularly, forgetting that Rocky Mountain National Park now requires timed entry reservations during peak hours. That last one cost me a wasted morning and a long drive back to Estes Park.
This guide is built from those mistakes so you do not repeat them.
Jump to: Easy hikes | Moderate hikes | Hard hikes | Permits and logistics | What to skip | FAQ
Key takeaways
- Rocky Mountain National Park requires timed entry reservations between 9 a.m. and 2 p.m. from May 22 through mid-October this year (check Recreation.gov for exact dates).
- Hanging Lake requires a permit costing around $10 to $12 per person, depending on the season (confirm the latest price directly with the operator).
- Start every Colorado hike before 7 a.m. Afternoon thunderstorms are a daily summer reality above treeline.
- Easy does not mean boring. Bear Lake Loop is 0.6 miles but delivers classic alpine views without the effort.
- Roxborough State Park does not allow pets, bikes, or motorized vehicles on any trail.
- Altitude sickness is real. Give yourself a full day to acclimate before attempting anything above 10,000 feet.
- Bring more water than you think you need. There is no reliable water source on most Colorado trails.
What are the best easy hikes in Colorado?
Easy hikes in Colorado are not a compromise. They are often the most scenic trails in the state, and they are the ones you can actually do with kids, grandparents, or a bad knee. The catch is that everyone else knows this too. Easy trails are the most crowded, especially on weekends between June and September.
I have learned to treat easy hikes as early morning activities. If you are on the trail by 6:30 a.m., you get solitude and soft light. If you arrive at 10 a.m., you get a parking lot full of Subarus and a conga line of hikers.
Maya’s honest take: “Bear Lake is the single most photographed spot in Rocky Mountain National Park. That is both a recommendation and a warning. Go at sunrise or do not go at all.”
Bear Lake Loop, Rocky Mountain National Park
Distance: 0.6-mile loop. Elevation gain: minimal. Nearest town: Estes Park. This is the easiest hike in the park and arguably the most beautiful per step. The trail circles a pristine alpine lake with views of Hallett Peak and Longs Peak. Informational kiosks explain the flora and geology. Because it is inside RMNP, you need either a timed entry reservation or to enter before 9 a.m. during the permit season.
Sprague Lake Loop, Rocky Mountain National Park
Distance: 0.7-mile loop. Elevation gain: negligible. Nearest town: Estes Park. Sprague Lake is wheelchair accessible and stroller friendly, with sections of wooden boardwalk and benches at every viewpoint. It is a fall favorite because the surrounding aspens turn gold in late September. Same timed entry rules apply as Bear Lake.
Fountain Valley Loop, Roxborough State Park
Distance: 2.5-mile loop. Elevation gain: moderate. Nearest town: Littleton. This trail delivers red rock formations that look like a miniature Garden of the Gods, just an hour from downtown Denver. The park bans pets, bikes, and motorized vehicles on trails, which keeps the experience quiet and uncrowded. It is a day-use park, so arrive early and plan to leave before dusk.
Best for families with young kids
- Bear Lake Loop (0.6 miles, flat, stroller-accessible boardwalk sections)
- Sprague Lake Loop (0.7 miles, wheelchair accessible, benches throughout)
- Fountain Valley Loop (2.5 miles, but flat enough for energetic kids)
Worth considering for a quick leg stretch
- Rim Rock Nature Trail, Black Canyon of the Gunnison (1 mile round trip)
- Serpents Trail, Colorado National Monument (3.25 miles, 700 feet gain but graded switchbacks)
What are the best moderate hikes in Colorado?
Moderate is where Colorado hiking gets interesting. You start to gain real elevation, the crowds thin out a bit, and the views shift from roadside scenery to something you earned. Moderate trails are also where permit systems and parking logistics become unavoidable. Hanging Lake, the most famous moderate hike in the state, requires a permit that often sells out days in advance.
I did Hanging Lake on a weekday in late September and still had to book my permit two days ahead. In summer, they disappear much faster. Plan accordingly.
Hanging Lake, Glenwood Springs
Distance: 2.76 miles round trip. Elevation gain: 1,200 feet. Nearest town: Glenwood Springs. This trail climbs steeply over rock steps to a turquoise lake that looks like it belongs in a fantasy film. The ecology is extremely fragile, so swimming, fishing, dogs, and drones are all banned. Permits cost around $10 in winter and $12 in summer per person (confirm the latest price directly with Hanging Lake Adventure Co-op). Cell service is non-existent at the trailhead, so download your permit before you drive.
Chief Mountain Trail, Arapaho National Forest
Distance: 4.7 km (2.9 miles) out and back. Elevation gain: 296 meters (971 feet). Nearest town: Idaho Springs. Chief Mountain offers 360-degree views of the Front Range, including Pikes Peak and Longs Peak, without the crowds of RMNP. The trail is rocky and well marked, climbing steadily through pines before breaking above treeline for the final push. Parking is a pull-off on Colorado Highway 103, and it fills by 9 a.m. on weekends.
Cub Lake Loop, Rocky Mountain National Park
Distance: 6-mile loop. Elevation gain: moderate. Nearest town: Estes Park. Cub Lake is often overlooked in favor of Bear Lake, which means fewer people and more wildflowers. The trail passes through meadows and aspen groves before reaching a small lake surrounded by reeds. In July, the wildflower display includes more than 80 varieties. Timed entry rules apply during permit season.
Hidden Fawn and Three Sisters Loop, Evergreen
Distance: 2.4-mile loop. Elevation gain: 433 feet. Nearest town: Evergreen. This is a moderate trail with an easy feel, perfect for a half-day outing from Denver. The route passes Brother’s Lookout and the Three Sisters rock formations, with panoramic foothill views. Parking fills fast on weekends, and the trail is shared with mountain bikers.
Best moderate hikes for scenery
- Hanging Lake (turquoise water, waterfall, but requires a permit)
- Chief Mountain (360-degree summit views without the RMNP crowds)
- Cub Lake Loop (wildflowers and a quieter RMNP experience)
Worth considering for a shorter day
- Hidden Fawn and Three Sisters Loop (2.4 miles, close to Denver)
- Rabbit Ears Peak Trail (5.5 miles round trip, wildflowers in late July)
What are the best hard hikes and 14ers in Colorado?
Hard hikes in Colorado mean two things: significant elevation gain and altitude above 12,000 feet. The 14ers, peaks above 14,000 feet, are the ultimate goal for many visitors. There are 58 of them in the state. They are not technical climbs in summer, but they are serious endurance tests. Altitude sickness, sudden storms, and route-finding mistakes are the three things that get people into trouble.
I have summited three 14ers. Each one taught me something different. The biggest lesson: start earlier than you think you need to. If you are still above treeline at noon in July, you are asking for trouble.
Willow Lake Trail, Sangre de Cristo Range
Distance: 4.8 miles one way (9.6 round trip). Elevation gain: significant. Nearest town: Crestone. This is a hard trail that rewards you with a 100-foot waterfall, a turquoise alpine lake, and views of two fourteeners, Kit Carson and Challenger Peak. The route involves stream crossings and some bouldering. It is not a beginner hike by any measure.
American Lake, near Aspen
Distance: 3.1 miles one way (6.2 round trip). Elevation gain: steep. Nearest town: Aspen. The trail climbs through aspen groves and dense conifers before breaking above treeline to a turquoise lake surrounded by jagged ridges. The steep grade makes it feel longer than the mileage suggests.
Crag Crest National Recreation Trail, Grand Mesa
Distance: varies depending on route. Elevation gain: steep. Nearest town: Grand Junction. This trail traverses the largest flat-top mountain in the world, with a narrow rocky ridge section that opens to 360-degree views. The full loop is 10.3 miles, but you can do an out-and-back on the ridge for a shorter, still challenging day.
Best hard hikes for experienced hikers
- Willow Lake (waterfall, alpine lake, two 14ers nearby)
- American Lake (steep, quiet, dramatic ridge views)
- Crag Crest (unique geology, ridge walking, Grand Mesa)
Worth considering for a first 14er
- Quandary Peak (near Breckenridge; the standard route is Class 1 but long)
- Grays Peak and Torreys Peak (two 14ers in one hike, easy access from I-70)
How do you handle Colorado hiking permits and logistics?
Colorado hiking has become a logistics game. Two of the most popular destinations in the state now require advance reservations, and the rules change almost every year. Here is what you need to know before you plan a trip.
Rocky Mountain National Park timed entry
From May 22 through mid-October this year, RMNP requires timed entry reservations between 9 a.m. and 2 p.m. daily. There are two types: standard Timed Entry, which covers most of the park but excludes Bear Lake Road, and Timed Entry + Bear Lake Road, which covers everything. Reservations are released on Recreation.gov on a rolling schedule starting May 1. A limited number are released at 7 p.m. the night before, but they sell out in minutes. The processing fee is $2 per reservation, and you still need a park entrance pass on top of that.
Hanging Lake permits
Hanging Lake requires a permit year-round. Permits cost around $10 in winter and $12 in summer per person (confirm the latest price directly with Hanging Lake Adventure Co-op). They are available for purchase on the Visit Glenwood website and are non-refundable. The trail reopened after a redesign project, and permits are currently available through December of this year. Buy your permit before you book a rental car or hotel, because if the permit sells out, your trip is off.
Other parks with restrictions
Roxborough State Park bans pets, bikes, and motorized vehicles on all trails. Castlewood Canyon State Park closes its East Canyon Trail from November 1 through May 1 and does not allow dogs on that trail at any time. Great Sand Dunes National Park recommends early morning or evening hikes in summer because sand surface temperatures can exceed 150 degrees Fahrenheit.
General trip planning
For flights into Denver, I compare prices on Kayak before booking anything else. For hotels near trailheads, Booking.com has the best filter options for mountain towns like Estes Park, Glenwood Springs, and Breckenridge. If you are traveling with a group and want a basecamp house, Vrbo is usually more economical than multiple hotel rooms.
What mistakes should you avoid when hiking in Colorado?
I have made most of these mistakes myself, so this section is not theoretical. Each one has cost me time, comfort, or both.
Do not skip the permit check.
I once drove 90 minutes to Rocky Mountain National Park without a timed entry reservation on a Saturday in July. I was turned away at the entrance. The ranger was polite about it, but I still had to drive back to Estes Park and replan my day. Check permit requirements for every park you plan to visit, every single time.
Do not start late
Colorado afternoon thunderstorms are not a joke. They roll in fast, often between 1 p.m. and 3 p.m., and they bring lightning. If you are above treeline when one hits, you are in danger. Start before 7 a.m. for any hike above 10,000 feet.
Do not underestimate altitude.
If you are visiting from sea level, give yourself a full day to acclimate before attempting anything strenuous. Altitude sickness symptoms include headache, nausea, and shortness of breath. They can hit anyone, regardless of fitness level. Drink more water than you think you need and take it easy on day one.
Do not assume all trails allow dogs.
Roxborough State Park bans pets entirely. Hanging Lake bans dogs. Castlewood Canyon bans dogs on the East Canyon Trail. Rocky Mountain National Park allows dogs only on specific trails and never above treeline. Always check before you bring your dog.
Do not rely on cell service.
Cell service disappears in most mountain canyons and above treeline. Hanging Lake has no cell service at the trailhead. Download offline maps, screenshots of your permits, and trail directions before you leave your hotel.
Do not wear the wrong shoes.
Colorado trails are rocky, rooty, and often steep. Light sandals and fashion sneakers are a recipe for a twisted ankle. Wear proper hiking shoes with traction. For winter and early spring hikes, bring microspikes or traction devices.
Do not forget about the sand.
If you are hiking at Great Sand Dunes, remember that sand surface temperatures can exceed 150 degrees Fahrenheit in summer. Wear closed shoes, not sandals, and hike in early morning or evening.
Frequently asked questions about hiking in Colorado
Do I need a permit to hike in Rocky Mountain National Park?
Yes, from May 22 through mid-October this year, RMNP requires timed entry reservations between 9 a.m. and 2 p.m. daily. You can enter before 9 a.m. or after 2 p.m. without a reservation. Reservations are available on Recreation.gov for a $2 processing fee, plus the standard park entrance pass.
How do I get a permit for Hanging Lake?
Hanging Lake permits are available on the Visit Glenwood website. They cost around $10 in winter and $12 in summer per person (confirm the latest price directly with the operator). Permits are non-refundable and often sell out days in advance during summer. Buy your permit before booking any other part of your trip.
What is the best time of year to hike in Colorado?
Summer (June through September) is prime season for high alpine trails, but afternoon thunderstorms are a daily risk. Fall (September and October) brings golden aspens, cooler temperatures, and thinner crowds. Winter hiking is possible but requires traction devices and avalanche awareness. Spring is muddy and snow-packed at higher elevations.
Can I bring my dog on Colorado hiking trails?
It depends on the trail. Roxborough State Park bans pets entirely. Hanging Lake bans dogs. Castlewood Canyon bans dogs on the East Canyon Trail. Rocky Mountain National Park allows dogs only on specific trails and never above treeline. Always check the specific park’s rules before you go.
What is the easiest hike in Rocky Mountain National Park?
Bear Lake Loop is the easiest hike in RMNP. It is a 0.6-mile flat loop around a pristine alpine lake with views of Hallett Peak and Longs Peak. Sprague Lake Loop is another easy option at 0.7 miles, and it is wheelchair accessible with boardwalk sections.
How do I avoid altitude sickness when hiking in Colorado?
Give yourself a full day to acclimate before attempting anything strenuous. Drink more water than you think you need. Avoid alcohol on your first day at altitude. Start with lower-elevation hikes before moving to 14ers. If you experience headache, nausea, or shortness of breath, descend immediately.
Are there any free hikes in Colorado?
Yes. Many National Forest trails are free, including Chief Mountain Trail near Idaho Springs and Limekiln Peak Trail Loop near Del Norte . State parks like Roxborough charge an entrance fee but do not require advance permits. National parks like Rocky Mountain and Black Canyon require entrance passes.
What should I pack for a Colorado hike?
Bring at least 1.5 to 2 liters of water per person, sturdy hiking shoes, sun protection, layers for changing weather, snacks, and a rain shell. For winter or early spring hikes, add microspikes or traction devices and trekking poles . Always carry a printed copy of any permits you need.
Plan your trip: booking platforms we trust
I use these platforms when planning my own Colorado hiking trips. They are reliable for comparing prices, reading recent reviews, and booking with confidence. I have noted what each one is best for so you can go straight to the one that fits your needs.
Agoda
Best for Asian hotel deals and sometimes surprising Denver rates.
General hotel search with strong filter options for mountain towns.
Best for flight and hotel packages if you want to bundle and save.
Flight price comparison across multiple airlines and booking sites.
Family villas and vacation rentals for groups or longer stays.
Tours and activities, including guided hikes and Rocky Mountain day trips.
Loyalty rewards bookings, which is good if you collect stamps toward free nights.
Reviews and restaurant finds are useful for mountain town dining.
WakaAbuja does its best to keep all information accurate at the time of publishing. Prices, policies, and availability change regularly. Always verify with official sources before you travel. We are not liable for errors caused by outdated information. Travel insurance is strongly recommended.
