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The Best Fitness in Boulder

Looking for the best fitness in Boulder? We've got you covered with the top trails, trips, hiking, backpacking, camping and more around Boulder. The detailed guides, photos, and reviews are all submitted by the Outbound community.

Top fitness spots in and near Boulder

  • Boulder, Colorado

    Hike the Eagle Sage Loop

    4.3
    3.75 mi / 205 ft gain
    This is a great trail if you are in the Boulder area and want something fairly easy or quick. This 3.75 loop can be hiked in about an hour and a half since it is fairly flat. The elevation gain is minimal. You start out at the Eagle Trailhead located west of the Boulder Reservoir.Start out at the...
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  • Boulder, Colorado

    Mount Sanitas Loop & Settlers Park

    4.4
    3.83 mi / 1371 ft gain
    First off, these are two different hikes but both stem from the same parking lot and Settlers Park is a mere 5 minutes away from where you park so why not kill two birds with one stone? One of the more popular hikes in Boulder, Mount Sanitas is a 3 mile hike that quickly scales nearly 1,350 feet...
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  • Boulder, Colorado

    Hike the Red Rocks Loop Trail

    3.7
    1 mi
    Parking is available on either Canyon or Sunshine Roads. During the weekends it tends to get crowded around sunset so plan accordingly. The entire trail is a loop and is a little over 1 mile in length so it doesn't take too long. The main feature is the massive red sand stone rocks that jut out o...
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  • Boulder, Colorado

    Royal Arch Trail

    4.3
    3.32 mi / 1220 ft gain
    Royal Arch Trail climbs up Boulder's famous Chautauqua Park to an archway formed by sandstone rocks that tower over thirty feet high. Start at the Chautauqua Trail Station by the Ranger Station, and continue up Bluebell Road for 0.7 miles. You will then arrive at a more forested area, where you ...
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  • Boulder, Colorado

    Hike to the 1st Flatiron

    4.7
    2.4 mi / 1422 ft gain
    Starting at the ever-popular and ever-populated Chautauqua Trailhead, take the main trail (a highway version of a dirt trail) straight towards the Flatirons. Continue going straight passed the Ski Jump trail to your right (0.2 mi.), then at a crossroads with the Bluebell-Baird trail (0.3 mi.) tur...
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  • Boulder, Colorado

    Woods Quarry via NCAR

    4.2
    3.28 mi / 755 ft gain
    You can start from Chautauqua Park, but I prefer to start at NCAR, especially since there is ample parking and you can take a bathroom break inside before hitting the trail. From the intersection of Table Mesa Drive and Broadway in Boulder, drive west on Table Mesa to its end at the NCAR buildin...
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  • Boulder, Colorado

    Boulder's Skyline Traverse

    5.0
    14.77 mi / 4583 ft gain
    Have you ever reached the bottom of a hike with some friends and thought, 'That was nice, but I'd still like to hike more... a lot more.'? Then the Skyline Traverse is for you. Instead of hiking just Green Mountain or Bear Peak, the Skyline Traverse links South Boulder Peak, Bear Peak, Green Mou...
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  • Boulder, Colorado

    Shanahan Ridge Trail

    4.0
    3.84 mi / 715 ft gain
    Starting on the edge of a neighborhood in South Boulder, this 3.8 mile loop begins its 869 foot elevation gain by meandering through a pine forest. You can 'choose your own adventure' by exploring the handful of trails that meet up with the Shanahan Ridge Trail, such as the South Mesa Trail, Shad...
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  • Boulder, Colorado

    South Boulder Creek - Mesa Trail - Lower Big Bluestem Loop

    4.0
    4.46 mi / 453 ft gain
    This 4 mile loop ascends only a slight amount in elevation, making for a pleasant loop in which opportunities for appreciation of the nature around you and broad vista photography are in plentiful supply. A great hike for those who may still be building their fitness, as so many trails in Boulder...
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  • Boulder, Colorado

    Hike South Boulder Peak

    4.5
    6.7 mi / 2900 ft gain
    Starting at the Mesa trailhead, continue a half a mile through a relatively even grade before arriving at the North Fork Shanahan trailhead, which will take you another half a mile on much steeper grade up to Fern Canyon where you will start a much harder portion of the hike; here, you'll head st...
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  • Boulder, Colorado

    Hike the Big Bluestem Trail Loop

    4.0
    4.35 mi / 841 ft gain
    This is a great spot for an easy/moderate hike or trail run. The trail is accessible year round and can often be hiked in winter as well as other seasons. You start out at the Mesa Trailhead parking lot off of Hwy 170. There is a parking lot here but this is a starting spot for several hikes into...
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  • Boulder, Colorado

    Hike Bear Peak

    4.8
    7 mi / 2810 ft gain
    The best advice I can give you? Wake up early to start this hike.Even though the Bear Peak hike will only take you about 4-5 hours round trip, it will still be advantageous to get off the mountain before afternoon and evening storms might pass through. This is a steep 7-mile out and back trail.St...
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  • Boulder, Colorado

    Hike or Bike the Walker Ranch Loop

    4.7
    7.7 mi / 1740 ft gain
    When it comes to hiking trails in Boulder, the standard response usually consists of either Chautauqua Park or Mt. Sanitas, and while both offer excellent hiking options, they are both usually jam packed on the weekends. If you’re looking to stay close to the city, but want a little more seclusio...
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  • Longmont, Colorado

    Hike the McIntosh Lake Loop in Longmont

    4.0
    3.3 mi / 10 ft gain
    McIntosh Lake is in northwest Longmont. The 3.3 mile loop extends all the way around the lake, with the first half being on a paved cement trail with neighborhood playgrounds, basketball, volleyball, and a seasonally open restroom. The trail turns to dirt on the western half of the loop, and here...
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  • Longmont, Colorado

    Hike or Trail Run on Rabbit Mountain, CO

    4.0
    3.95 mi / 472 ft gain
    This is a great hike/trail run in Boulder County. It is located between Longmont and Lyons and is part of Boulder County Open Space. Rabbit Mountain has over 5 miles of trails and 2,733 acres of beautiful open space. The views are incredible as most of your hike you are looking out at the entire ...
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  • Ward, Colorado

    Summit Mt. Toll

    6 mi / 1800 ft gain
    This hike starts at the Mitchell Lake trailhead in the Brainard Lake Recreation Area - keep in mind that during the Summer months its a $10 entry fee to drive directly to the parking lot at the trailhead. If you choose not to spend $10 dollars you can park at the first parking lot and hike the we...
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