ap

Skip to content
Outdoor Extremes calendar: 8/12-8/19
Thursday, May 14th 2026

Trending:

Things To DoOutdoors

Outdoor Extremes calendar: 8/12-8/19

By | newsroom@denverpost.com | The Denver Post
PUBLISHED:
Getting your player ready...

CLIMBING

Aug. 23-24

Rock climbing instruction in Estes Park; starting at $159 for ages 10 to 17, $199 for adults; registration fee includes professional instruction, weekend camping, Saturday barbecue, Sunday breakfast.
or 800-829-2009

CYCLING

Aug. 17

Venus de Miles; Colorado’s first women’s-only bike ride; noncompetitive event with two riding routes in Boulder County, starting and finishing in Longmont; benefits Greenhouse Scholars, a nonprofit organization that provides financial assistance for college-bound students.

Sept. 6

Aspen-Snowmass Ride for the Cure; 100-mile bike ride between Aspen and Snowmass, with a flatter 26-mile option; benefits the Susan G. Komen Breast Cancer Foundation; last year’s event drew 424 riders of all levels and raised $655,000.
or 970-920-0250

Sept. 14

Twelve Hours of Snowmass; dawn-to-dusk mountain bike race on Snowmass trails; benefits Aspen Youth Center, Extreme Sports Camp; riders can participate in solo, team, corporate divisions.
or 970-544-4130

Ongoing

  •  Track workouts; at Harvard Gulch Park (South Pearl and Warren), Denver; Tuesdays, 7:30 a.m.
    or 303-744-2766

  •  Road bike rides every Saturday and Sunday along the Front Range, sponsored by Colorado HeartCycle; 20 to 100 miles; weather permitting; helmet required.

  •  Road rides each weekend in the south Denver area hosted by the Highlands Ranch Cycling Club; intermediate to advanced; two to five hours; helmet required; free.

  •  Mountain bike camps, private lessons and clinics with Better Ride; for recreation riders and racers; focus on core skills, balance, vision, cornering, energy management, obstacles, drops, etc.
  •  Beginner mountain bike skills class; various locations along the Front Range; first Sunday of every month; taught on a custom-made obstacle course; 8 a.m.; $80. 303-507-1148

    Guided Mountain Biking; at Devil’s Thumb Ranch in Tabernash; Thursdays, Saturdays and Sundays; $35, includes bike and helmet rental; with intro to technique; all abilities.

  •  Gunnison Valley mountain biking instruction and tours; private, groups, ladies only, half day, full day or custom; fees vary; Gunnison/Crested Butte. 970-275-0485
  •  Road ride each Saturday morning led by the staff of Bicycle Pedal’r bike shops in Highlands Ranch; 20 to 30 miles; weather permitting; open to intermediate and advanced riders.

  •  Road bike rides; weekday evenings and every weekend along the Front Range; 25 to 125 miles; intermediate to advanced; helmet required; hosted by the Rocky Mountain Cycling Club.

    HIKING/BACKPACKING

    Aug. 21

    Outdoor survival instruction; at Boulder Meadows Community Room, 4500 19th St. in Boulder; class taught by geologist Richard Dart; free; 7:30 p.m.

    303-494-1521 or

    Aug. 23

  •  Paiute Peak Scramble; Sierra Club hike; limited to eight participants; bring sturdy hiking shoes or boots suitable for loose footing (also bring extra food, water); 8 miles round trip; 2,500 feet elevation gain; free; 7 a.m.720-837-0074

    Aug. 23

  •  Backpacking clinic; at Horsetooth Mountain Open Space, just west of Fort Collins; half-day clinic includes planning, packing, cooking, navigating and gear information; bring pack loaded for overnight hike (covering about 5 miles on moderate to difficult trails) along with plenty of water and food; registration required.

    970-679-4561

    Ongoing

  •  Map and compass class; with the U.S. Geological Survey; a map, compass and orienteering class at 1 p.m. the first and third Fridays monthly in the map department at the Denver REI store, 1416 Platte St.; free. 303-756-3100 or

  •  Nordic walking; incorporate nordic hiking poles into hikes and runs, learn different techniques and hill bounding; Mondays and Fridays noon-1:30 p.m., Saturdays 12:45-1:45 p.m.; through Oct. 15; at Devil’s Thumb Ranch, in Tabernash; $15.

  •  Open Space and Mountain Parks volunteer trail guides; Boulder Open Space and Mountain Parks (OSMP) is recruiting volunteers as trail guides; six to 10 hours per month; free classroom and field training provided in four required sessions. or 720-579-4161

  •  Work the Colorado Trail; trail work and other volunteer tasks; from single day to weeklong, June to August; by the Colorado Trail Foundation.

  •  Park weeding and trail maintenance; at Roxborough State Park, in Littleton; need for volunteers to work with trained crew leaders to pull, snip and collect noxious weeds and help maintain the hiking trails. 303-973-3959

    KAYAKING/RAFTING/CANOEING

    Ongoing

  •  Lessons and open-pool sessions hosted by Golden River Sports; Tuesdays and Thursdays, 6:30-8:30 p.m.; reservations required; Golden Recreation Center. 303-215-9386

  •  Open-pool session and beginner and expert lessons hosted by Confluence Kayaks; 8-10 p.m. Tuesdays; lesson with gear, $45, open-pool access only, $10; reservations required; University of Denver’s El Pomar Natatorium, 2201 E. Asbury Ave. 303-433-3676 or

  •  Lessons with Poudre River Kayak and Canoe; on the Poudre River; learn how to run rivers, stroke, roll and play on whitewater. brian@themountainshop.com or 970-493-5720
  •  Ducky trips with Poudre River Kayak and Canoe; with experienced guides. brian@themountainshop.com or 970-493-5720
  •  Roll clinic and outdoor sessions hosted by the Boulder Outdoor Center; at Boulder Reservoir; weekdays and weekends, day and night; online registration; reservations required; Louisville Recreation Center, 900 W. Via Appia, Louisville.303-444-8420 or

    RUNNING

    Aug. 16

  •  Palisade Peach Festival 5-mile run; through and around Palisade’s peach orchards; $20; 8 a.m. 970-250-8592
  •  Endurance Challenge run and walk; at Olde Town Arvada; benefits children who are victims of sexual assault and abuse; kids $15, adults $20, family $60, team (of 10) $120; 10 a.m. or 720-898-6745

    Aug. 23

    Mt. Sneffels Education Foundation Half Marathon Run/Walk; through the rugged San Juan Mountains; 13.1-mile course starts at the Ouray Hot Springs in Ouray, through the Uncompahgre River Valley and ends at Batchelder Park near Ridgway; $30; 7:30 a.m.

    Aug. 24

  •  Castle Rock Fling; 5-mile run, 5K run and walk; starts at Douglas County Events Center; $25 for adults ($30 day of event), $10 for children 10 years and younger; registration fee includes T-shirt, breakfast; 8 a.m.

    Aug. 24

  •  Race for Research 5K; at Washington Park, Denver; 8 a.m.

    Aug. 24

  •  Marathon Training Series 20-mile race; at Westminster City Park, Sheridan Boulevard and 105th Avenue; 7 a.m.

    Sept. 6

    First American State Bank Fitness Festival 5K; at Crescent Park, Greenwood Village; 9 a.m.

    Sept. 13

  •  Oktoberfest 5K; at the Highlands Ranch Town Center, 9352 Dorchester St.; fundraiser for the nonprofit Jordan’s Angel Foundation, which is dedicated to supporting families of children with cancer and their special needs; $25 (preregistration) and $35 (race day); 12:30 p.m.
    or

    Sept. 13

  •  Chatfield Reservoir 8-miler; part of Rocky Mountain Road Runners Trophy Series; handicap system, with slower runners starting first, so everyone finishes at about same time; free for members, $5 for nonmembers; 8 a.m.

    Sept. 14

    Marathon Training Series 20-mile race; at Westminster City Park, Sheridan Boulevard and 105th Avenue; 7 a.m.

    Sept. 27

    Vasque Goldenleaf Half Marathon; runners go from Snowmass to Aspen using spectacular mountain trails and roads at height of foliage season.
    or 970-925-2849

    Sept. 28

    Governor’s Cup 10K and 5K, at Veterans Park, Denver; 9 a.m.

    Oct. 4

    Waterton Canyon 10-miler; part of Rocky Mountain Road Runners Trophy Series; handicap system, with slower runners starting first, so everyone finishes at about same time; free for members, $5 for nonmembers; 9 a.m.

    Oct. 11

    Backcountry 10-mile and 5-mile runs; at Rocky Heights Middle School, Highlands Ranch; preregistration ($25 for 5-miler, $35 for 10-miler) and race day ($35 for 5-miler, $45 for 10-miler) fees; 8:30 a.m.
    or

    Oct. 24

    Scream Scram 5K; at Washington Park, Denver; 6 p.m.

    Nov. 1

    Fall Festival 5K; at Grand Junction Botanical Gardens; course on paved pedestrian Riverfront Trail; $20; 9 a.m.

    970-257-9267

    Nov. 2

  •  Westminster City Park 9-miler; part of Rocky Mountain Road Runners Trophy Series; handicap system, with slower runners starting first, so everyone finishes at about same time; free for members, $5 for nonmembers; 9 a.m.

    Nov. 2

  •  Littleton Stride 5K and 10K; at Kettring Park, Littleton.

    Nov. 8

    Mesa State 37K Rim Rock Run; starts at east entrance (Grand Junction side) to Colorado National Monument, finishes near Fruita; limited to 400 runners because of park rules; fundraiser for Mesa State College cross country team scholarships; $30; 8 a.m. or 970-464-9040

    Nov. 8

    Red Thread Run 5K; at City Park, Denver; 9 a.m.

    Nov. 9

    Race for Hope 5K; at Washington Park, Denver; fundraiser for the Fetal Hope Foundation, which works to help save the lives of babies; 10 a.m.

    Nov. 15

    Gobble Wobble 5K; at Green Valley Ranch; 9 a.m.

    Nov. 26

    Mile High United Way Turkey Trot; 4-mile run; at Washington Park, Denver; 10 a.m.

    Dec. 7

    Denver’s Washington Park 4.4-miler; part of Rocky Mountain Road Runners Trophy Series; handicap system, with slower runners starting first, so everyone finishes at about same time; free for members, $5 for nonmembers; 9 a.m.

    Dec. 14

    Jingle Bell Run; at Washington Park, Denver; fundraiser for the Arthritis Foundation; 10 a.m.

    Dec. 20

    Steve’s Rudolph Ramble 5K; at City Park, Denver; 9 a.m.

    SAILING

    Aug. 23

    Junior Open Sailing Regatta; at Cherry Creek State Park; for junior sailors younger than 19; hosted by the Denver Sailing Association; loaner boats are available from Community Sailing of Colorado; contact Steve Frank at stevefrank@communitysailing.org or 303-757-7718; 9:30 a.m.; $5.

    Ongoing

    Colorado State Parks boating safety classes; at various locations; open to adults and teens; includes a homestudy manual, a two-hour classroom review and a written exam.

    SNOWSHOEING/

    CROSS COUNTRY SKIING

    Ongoing

    Snow skills classes and guided backcountry expeditions; Aspen area; half-day classes for novice mountaineers (starting at $150), expeditions for peak ascents and spring skiing (starting at $280).

    970-925-9625 or

    TRIATHLON/DUATHLON

    Aug. 16

    Iron Kid’s Triathlon; in Durango; swim, bike and run; start and end at Durango Community Rec Center; includes membership to the USA Triathlon Association; $25; 8 a.m.

    970-375-7300 or

    Ongoing through Sept. 15

    Open-water swimming, masters swimming; at Grant Ranch Community Association (Bowles Reservoir) in Littleton; outdoor pool and lake; early-morning and evening sessions; simulated races; $10 per session, season passes also available;

    presented by Mile High Multisport.
    or e-mail Pete@milehighmultisport.com or

    TexBeck25@aol.com

    Ongoing

    Boulder Tri Babes; triathlon club; at RallySport Health Club; near 28th Street, between Pearl and Valmont; meet new friends who offer support every step of the way; women of all ages and abilities welcome; multiple levels of group training; $195.

    MISCELLANEOUS

    Aug. 16

    Denver Oyster Urban Adventure Race; part of the Merrell Oyster Racing Series; an urban adventure race, with three-person teams; 4-8 hours covering 40-50 miles; traditional course.

    Ongoing

  •  Maps, Compasses and Orienteering class; a U.S. Geological Survey-hosted class; free; 1 p.m., first and third Fridays of the month at REI Denver flagship store, 1416 Platte St.

  •  Outdoor discussion with Altitude Adventures staff; topics include high-altitude sicknesses, trip planning and compass reading and what to do in emergency situations.
    or 303-499-1100

    Calendar submissions: Send information 14 to 21 days in advance to OEcalendar@denverpost.com or send fax to 303-866-9004 (attention:

    Outdoor Extremes). Include contact information. Items run on a space-available basis.

    • RevContent Feed

    More in Sports