ZEE Jaipur Literature Festival — Join us in examining the human experience through the reflections and imaginations of distinguished contemporary authors, featuring literature from all over the world. Free and accessible to everyone; 9 a.m. Saturday, Sept. 21, Boulder Public Library, 1001 Arapahoe Ave., Boulder; free; 718-532-6037.
Yoga Now…Taco Later — Bulldog Yoga will offer an activate-style class –– a slow flow that is challenging, but accessible to all. The yoga session will be followed by a bartaco lunch tray of choose-your-own tacos or rice bowl plus a chopped salad or soup, as well as chips and guacamole and aguas frescas; 10 a.m., Sept. 21, bartaco, 1048 Pearl St., Boulder; $27; 719-249-8226.
Bears in Our Backyard Hike — As fall approaches, Boulder County’s black bears are busy gorging on berries and other food in preparation for their long winter sleep. Join volunteer naturalists on a moderate 1-mile hike to learn about the natural history of our local bruin and how people and bears can share our wild places. Register at bouldercounty openspace.org/register; 10 a.m. Saturday, Sept. 21, Location provided to registered participants., Near Boulder, Boulder; free; 303-678-6214.
Colorado Skies: Autumnal Equinox — Interested in learning about tonight’s sky and the constellations that are up this time of year? Want to know what objects to look for with the naked eye, a pair of binoculars, or a small telescope? In this seasonal talk series, we explore the stars, planets, constellations, and deep-sky objects such as galaxies and nebulae using our analog star projector, which produces a stunning night sky with 10 million stars. CU Boulder students are admitted FREE with valid Buff card; 2:30 p.m., Sept. 21, Fiske Planetarium, 2414 Regent Drive, Boulder.
Arts in the Open presents “Ghosted: A Paranormal Mystery” — Audience and actors meet at the Chautauqua Picnic Shelter and take a moderate hike on the Enchanted Mesa Trail while scenes from the play are performed along the way. Approximate length of the hike is 2 miles with an elevation gain of 400 feet; 3 p.m., Sept. 21, Chautauqua Park, 900 Baseline Road, Boulder; $15-$20; 720-663-9491.
Rockies to Reefs — Ocean First Institute is proud to announce our third annual fundraiser, Rockies to Reefs. The event brings together local ocean supporters for an evening of music, appetizers and deserts, wine and local beers, auctions, and guest speakers — all benefiting the work of OFI.; 5 p.m., Sept. 21, Journeys Aviation, 3335 Airport Road, Boulder; $50.
Celebrating Our National Mammal — As part of the Buffalo Field Campaign, Red Shoes Studios, and the Museum of Boulder exhibit “Wild | Buffalo in Boulder,” join us for an opening celebration of Our National Mammal featuring live music and dancing provided by the Hazel Miller Band; 5:30 p.m., Sept. 21, Museum of Boulder at the Tebo Center, 2205 Broadway, Boulder; $40-$65; 303-449-3464.
Cultivating Mushrooms on Straw — Cultivating mushrooms on straw is fast, efficient, and well-suited to home cultivation. This hands-on workshop will cover step-by-step how to successfully grow mushrooms on straw. Each participant receives one straw block producing oyster mushrooms under proper care; 9 a.m. Sunday, Sept. 22, RSVP to firstname.lastname@example.org for location, Boulder; $25.
Making the Ultimate Cup of Camp Coffee — Join REI and Ampersand Coffee gurus and learn about backcountry brewing techniques, equipment options, coffee selection and storage and all the extras needed to make delicious coffee at a campsite; 9:30 a.m. Sunday, Sept. 22, Rayback Collective, 2775 Valmont Road, Boulder; free; 303-583-9970.
Doggie Dash 2019 — Sign up today for the 30th annual Doggie Dash. HSBV’s 2-mile fun run and walk fundraiser to help pets and people in need; 10 a.m. Sunday, Sept. 22, Boulder Reservoir, 5565 51st St., Boulder; $0-$25; 303-442-4030 x637.
6th Annual “Celebrating Bird Migration” Festival — Explore the wonderful world of birds. See a live Golden Eagle and other birds of prey up close and in their natural surrounding through spotting scopes and binoculars. Learn about migration and marsh habitat. Free event suitable for all ages; 1 p.m. Sunday, Sept. 22, Waneka Lake Park, 1600 Caria Drive, Lafayette; free.
Mapleton Hill PorchFest — Mapleton Hill PorchFest is a neighborhood walkabout where local musicians play and sing mostly unplugged music. Musicians from throughout the region come together to perform during two sets. There are 28 bands scheduled — the largest roster ever. Among them are the well-known, much-loved groups Mayhem Gulch and Sunshine Canyon String Band; 1 p.m. Sunday, Sept. 22, Mapleton Hill neighborhood, Mapleton Ave., Boulder; free; 352-359-5060.
Blackbelly Dinner — Celebrate the seasons as summer turns to fall and enjoy an intimate evening of dining at Milk and Honey Farm. Chef Hosea Rosenberg of Blackbelly Market will delight with a five-course meal highlighting our farm produce. Dinner will be served on the farm, with beautiful views of the Front Range. Dinner proceeds directly benefit the farm; 5 p.m. Sunday, Sept. 22, Boulder JCC, 6007 Oreg Ave., Boulder; $50-$120; 303-998-1900.