Chasm Lake Day Hike
- Stare up at Longs Peak
- Stunning alpine lakes
- Breathtaking mountain cirques
- Amazing natural and cultural history
- Top-shelf backpack & trekking poles
- Tasty trail snacks & picnic lunch
Chasm Lake is a stunning alpine body of water at the base of the Rocky Mountain's most famous summit, Longs Peak (14,259 feet). More specifically the lake lies in the bottom of a cirque below the 2400-foot-tall, east-facing cliff ("Diamond") that protects Longs Peak's lower flanks. Because of Chasm Lake's views of The Diamond, Longs Peak, Mount Lady Washington (13,281 feet), and Mount Meeker (13,911 feet), it is regarded as one of the most breathtaking destinations in the Park.
The hike to Chasm Lake takes us through dense spruce-fir forests into subalpine stands and finally the big views, stunted trees and scree fields of Colorado's famous alpine mountains. We pass views of distant peaks and waterfalls before finally arriving at the shores of Chasm Lake.
(Important: We run hikes in almost all weather conditions and very rarely cancel. See our terms and conditions for information on cancellations and refunds.)
Colorado Day Hikes Online Booking
You can also click here to request new dates or book through customer service.
The below dates reflect general availability for all Rocky Mountain day hikes. Click on your desired date to book (you'll select your specific hike during the registration process). This specific hike can only be operated within the seasonal dates of July-October.
We may be able to add new trip dates.
Day Hike Rates
- 1 person: $495
- 2 people: $245 per person
- 3 people: $215 per person
- 4-5 people: $175 per person
- 6-7 people: $145 per person
- 10 and younger: $105 per person
*Prices do not include guide gratuity
Ready to hike? Day hike reservations are made through our Adventure Consultant team. You can click here to get the ball rolling. Our adventure consultants will confirm availability, and if you're ready to register we'll email you a link to a registration profile. You'll have 72 hours to complete your profile (and that of any dependents) and make your payment.
Feel free to call us for more info - we're here 7 days a week!
- A professional, knowledgeable, medically trained, friendly wilderness guide.
- A commitment to make the tour as exciting, challenging, informative, and full as you'd like, and as is possible in a day
- Transportation to the trailhead and back (originating/ending in Estes Park)
- National park entrance fee
- Trail snacks and a picnic lunch
- Use of a top of the line, technical day pack
- Use of trekking poles
- Lightweight hiking shoes or hiking boots
- Waterproof rain jacket or poncho
- Warm wool or fleece top (Spring, Fall)
- Warm hat and gloves (Spring, Fall, Winter)
- Water bottles or bladder (2 liters total capacity)
- A cold or frozen bottle of water or Gatorade (Spring, Summer, Fall)
- Knee braces (if needed)
- Gratuity for your guide
Day hike tours include energizing trail snacks and a delicious picnic lunch. Your guide will customize the food for your hike, but a typical lunch consists of gourmet sandwiches or wraps, fruit, veggies, chips, drinks and a dessert. On wintery or cold days you may be treated to soup or a hot, freshly cooked lunch (if you'd prefer a hot meal, please let us know!)
We regularly accommodate vegan, vegetarian, kosher and non-gluten diets and will make adjustments for food allergies. These and other special dietary requests may require an additional fee.
Your guide will pick you up from your hotel in Estes Park by 7am or earlier the morning of your hike. If you are traveling into town the day of the tour, you will meet at the Estes Park Mountain Shop - 2050 Big Thompson Ave, Estes Park, CO.
Tours hiking above the tree line or attempting mountain summits will begin before sunrise. An early start is essential for safety to avoid afternoon thunderstorms.
Your guide will contact you approximately one week before your hike to coordinate the exact time and location of your rendezvous in Estes Park, as it may also be affected by weather forecasts.
Your safety is our top priority. Our hiking tours are led by professional hiking guides, all of whom are wilderness-certified first responders or EMT's, each with years of guiding and wilderness experience. We've developed comprehensive risk management protocols that our guides adhere to in case of an emergency, and most tours carry a satellite phone. If you have any further questions about safety, please contact us at 1-800-715-HIKE (4453) for more information.
Your tour will be led by a trained, experienced professional with a solid guiding background, years of personal wilderness and hiking experience, medical certifications, and a passion for leading people into breathtaking landscapes. Check out our Meet Our Team page for staff bios.
The standard group size on this hiking tour is 6 guests and 1 guide. If you have more questions about group size, please give us a call at 1-800-715-HIKE (4453) and we'll answer all your questions.
Age restrictions are as follows:
- 12 and older to join daily departures (mixed groups)
- 5 and older to join private tours, with final approval on a case by case basis
Being a high mountain environment, the Rocky Mountains are prone to sudden temperature and weather shifts. This is an exciting aspect of being in Colorado's high country. On trips in June, snow is a slight possibility, and the rest of the summer rain is always a possibility on your trip. To be fully prepared, please follow the recommended clothing list closely (this list comes as part of your trip packet when you register). See below for average summer temperatures:
|Average Temperatures (Fahrenheit)|
High / Low