Mural Dedication — The Dairy Arts Center will be dedicating a new mural to kick off Indigenous People’s Day weekend. The dedication marks the beginning of a series of future partnerships and collaborations between the Dairy Arts Center and various indigenous communities and artists that will unfold over the coming years. Light fare and refreshments will be available; 10 a.m., Dairy Arts Center, 2590 Walnut St., Boulder; 303-440-7826.
Saltwater Saturday — Join us for a fun-filled action-packed Saltwater Saturday featuring Captain Bruce Chard. Seminars along with activities will be ongoing throughout the day. Barbecue grill smoking for lunch and beverages all day; 9 a.m., Oct. 12, Front Range Anglers, 2344 Pearl St., Boulder; free; 303-494-1375.
Trailside Bike Repair Workshop — Don’t let a surprise on the trail cancel the ride. Llearn to basics of trailside repair to not be left out and unprepared. Join REI’s expert bike techs for this hands-on workshop addressing the most common trailside issues. Busted chains noisy drivetrains and broken spokes are all on the agenda with plenty of chances to practice along the way; 9:30 a.m., Oct. 12, Rayback Collective, 2775 Valmont Road, Boulder.
Letters to the Future — Take the time to collect personal stories so they aren’t forgotten. Using a simple step-by-step process, pull together legacies to impart to others. Get started on the writing path whether the goal is to write a book-length memoir or to pen stories for personal value; 10 a.m., Oct. 12, Arapahoe High School, 6600 Arapahoe Road, Boulder; $79; 720-561-5968.
Blessing of the Animals — Bring leashed or crated pets, or a photo, to be blessed. The Blessing will include a short skit of St. Francis and the Wolf of Gubbio. Enjoy treats for humans and animals alike; 10:30 a.m., Oct. 12, St. Ambrose Episcopal Church, 7520 S. Boulder Road, Boulder; free; 720-333-3354.
Halloween House — Halloween House is a fundraiser for BoulderReads. Kids ages 3-10 enjoy Halloween fun creating crafts, playing games, and trick or treating at the Kappa Kappa Gamma house. First hour is “low sensory” for children with autism; 11 a.m., Oct. 12, Kappa Kappa Gamma House, 1134 University Ave., Boulder; $6; 303-808-4363.
An Arctic Perspective on Contemporary Global Warming — The Arctic is warming two to three times faster than the rest of the Earth, a fact with implications that researchers are just beginning to understand. In this CU on the Weekend lecture, CU Boulder’s professor Gifford Miller will discuss how global warming is measured and evaluated, and how current warming trends compare to earlier centuries; 1 p.m., Oct. 12, Jennie Smoly Caruthers Biotechnology Building, 3415 Colorado Ave., Boulder; free; 303-492-4471.
“Star Trek” Geeks Who Drink Quiz — Resistance Is Futile: A Star Trek Quiz is coming to a quadrant near you. Our one-day mission: to celebrate “Star Trek,” to seek out new questions and new answers, to boldly go where no quiz has gone before. Registration Required. Food truck on site. Cash prizes; 3 p.m., Oct. 12, Gunbarrel Brewing Company, 7088 Winchester Circle, Boulder; $5; 800-803-5732.
Boulder Creek Clean Up — Community volunteer event helping to keep Boulder beautiful. Join the fun as we remove trash and debris from Boulder Creek and the surrounding riparian habitat. Family friendly, barbecue to follow with live music; 9:30 a.m. Sunday, Oct. 13, Rocky Mountain Anglers, 1904 Arapahoe Ave., Boulder; free; 303-447-2400.
Flatirons Food Film Festival: Pollinator Fair — Members of organizations and businesses dedicated to the well-being of pollinators will provide information on pollinators, their mission, and the work that they are doing on behalf of pollinators. Bring your questions to the fair; noon, Sunday, Oct. 13, Muenzinger Auditorium, CU Boulder campus, 1905 Colorado Ave., Boulder; free; 303-449-5928.
History and Nature Hike — Venture back 120 years on this 3-mile hike with an enthusiastic naturalist. Come and discover how the histories of Chautauqua & Open Space Mountain Parks are woven together. Our guide will interpret the history, flora and geology that provide inspiration along the trail. Elevation gain approximately 700 feet. Register by calling 303-651-8404; 1 p.m. Sunday, Oct. 13, Chautauqua Park, 900 Baseline Road, Boulder; $25-$31; 303-651-8404.