E very day is basically Earth Day in Boulder.
But, since Sunday is the actual holiday, you should probably be on your greenest of green behavior. Whether you want to celebrate by eating locally or just taking in the great outdoors, here are some ways to thank Mother Nature.
Brad Jimenez at Asher Brewing Company
6:30 p.m. to 8 p.m. Friday, 4699 Nautilus Court South #104
Organic and acoustic fit hand-in-hand with Earth Day. Take in some of Asher's organic brews -- the first all-organic brewery in Colorado -- while listening to the acoustic sounds of Colorado-based singer/songwriter Brad Jimenez.
Boulder Farmers' Market
8 a.m. to 2 p.m. Saturday, 1900 13th St.
Start your weekend out fresh at the Farmers' Market, which has been going strong since 1986, and hosts everything from locally farm-grown fruits and veggies to hip food vendors.
11 a.m. to 1 p.m. Saturday, 1750 13th St.
Prefer something a little more hands-on? Go on a tour of Boulder with urban foraging -- the hunt for free fruits and vegetables around the city -- expert Kate Armstrong and learn about the food growing at your feet. Then, return to the Boulder Museum of Contemporary Art to enjoy the work of Viviane Le Courtois' "Edible?" exhibit. The artist uses unusual finds to make art and used food as a medium for this particular one. Join the artist for a "sidewalk-to-table" meal and tea.
Firefly Handmade -- Spring Makerie Market
7 p.m. to 10 p.m. Saturday, 900 Baseline Road
It's $2 to check out the work of more than 60 artisan vendors at the seasonal artisan indie craft market in Boulder. At the Makerie, local pieces range from jewelry, to accessories, to stitching. On hand will be grub from Boulder sweet shop Tee&Cakes, mobile Mexican fare Comida and Boulder gourmet deli, Dish.
Earth Day 5k
10 a.m. Sunday, 4001 Discovery Dr.
Support the Center for ReSource Conservation and the University of Colorado Environmental Center and get some exercise at the 10th annual "greenest 5K in Boulder." There will be meditation and stretching circles an hour before the race to help limber those limbs.
Noodles & Company will provide food post-race, and racers can use their times to qualify for the first 29 waves of the Bolder Boulder.
Green kicker: Bring your own hydration device to help keep the event cup-free.
Wild Earth Day
11 a.m. to 4 p.m. Sunday, Unit 107, 20 Lakeview Dr., Nederland
The 11th annual zero-waste celebration, hosted by Wild Bear -- a nonprofit that promotes an environmentally sound community -- is full of hands-on activities and educational workshops to celebrate Earth Day.
Gaze at the stars in Fiske Planetarium's Star Lab, meet bald eagles, hawks and owls with HawkQuest or go on the wilder side with reptiles and arachnids.
There will also be music, face painting and a presentation by renowned sustainability educator and professor Lonnie Gamble of Fairfield, Iowa. And there are prizes for those who use alternative transportation to get to the event.
'Flirting with Heights'
9 p.m. to 11 p.m. Sunday, 2021 Colorado Ave.
The International Film Series brings you the best of wildlife with Jean-Michel Bertrand's "Flirting with Heights." Bertrand shot the film solo over a course of four years in the French Alps, allowing him to capture some of the most elusive mountain animals.
Tickets are $7 for general admission and $6 for CU students and seniors.