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Maricopa County Parks and Recreation: Desert 101 Hike

Lake Pleasant Regional Park 41835 N. Castle Hot Springs Rd., Morristown

Join Ranger Derik on a slow-paced walk along the lake and learn about the many animals and plants that call the park home.   The hike is rated as easy and...

Free with Park Fee

Maricopa County Parks and Recreation: Usery – Invasive Species Removal

Usery Mountain Regional Park 3939 N. Usery Pass Rd., Mesa

Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks. Participants will learn to identify several invasive species, their phenology and characteristics, and how to remove these invasive plants effectively.  Meet at the Nature Center. The goal is to remove invasive plants as a proactive...

Free with Park Fee

Maricopa County Parks and Recreation: Estrella – Earth Day Desert Defenders Event

Estrella Mountain Regional Park 14805 W. Vineyard Ave., Goodyear

This hands-on event features a variety of fun and meaningful projects—perfect for anyone who enjoys getting their hands dirty (or wearing gloves!). Earth Day – Desert Defenders Event at Estrella Mountain Regional Park Join us on this Earth Day at Estrella Mountain Regional Park on April 22, 2026, from 7:00 AM to 10:30 AM. We’ll meet at the Nature Center parking lot....

Free with Park Fee

Maricopa County Parks and Recreation: White Tank – Invasive Species Removal

White Tank Mountain Regional Park 20304 W. White Tank Mountain Rd., Waddell

Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks. Participants will learn to identify several invasive species, their phenology...

Free with Park Fee

Maricopa County Parks and Recreation: McDowell – Invasive Species Removal

McDowell Mountain Regional Park 16300 McDowell Mountain Park Dr. MMRP, Fountain Hills

Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks. Participants will learn to identify several invasive species, their phenology...

Free with Park Fee

Arizona State Parks and Trails: Daily Guided Nature Hikes at Red Rock

Red Rock State Park 4050 Red Rock Loop Rd., Sedona

Every morning, a volunteer naturalist leads a guided nature walk informing visitors about the different life zones of Red Rock State Park. The subjects discussed on this walk may include geology, wildlife, history, archeology, and plant life. The naturalists welcome questions during the walk, enhancing the learning experience. Hikes are included with park entrance fees...

Free with Park Fee

Mesa Public Library: Grow-a-Garden!

Mesa Public Library - Gateway Branch 5036 S. Eastmark Pkwy., Mesa

Join us as we celebrate Earth Day with some planting. We will have biodegradable starter cups, soil, and seeds. We just need you to plant them and watch them grow!

Free

Maricopa County Parks and Recreation: City Nature Challenge Practice Hike

Estrella Mountain Regional Park 14805 W. Vineyard Ave., Goodyear

Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science!   Join Ranger Eric on...

Free with Park Fee

Maricopa County Library District: Coral Reef Biomes

MCLDAZ - Litchfield Park Library 101 W. Wigwam Blvd., Litchfield Park

Celebrate Earth Day by learning about one of the world's most interesting ecosystems! We will discover the different ocean animals and plants living in coral reefs and use our knowledge to build coral reef dioramas using clay and more. This program is for tweens ages 8-12. Registration required.

Free

Mesa Public Library: Mason Jar Beehives for Earth Day

Brady Park 7045 E. Monterey Ave., Mesa

Celebrate Earth Day with a creative, hands-on activity! Kids will make their own Mason Jar Beehives while learning why bees are so important to our planet. This craft introduces young...

Free

Phoenix Public Library: TeenTime! DIY Leaf Bookmarks

Phoenix Public Library - South Mountain Community Library 7050 S. 24th St., Phoenix

We'll take a nature walk, collect leaves and flowers around campus, and create a laminated bookmark to have a piece of Earth inside your book at all times 🍃 About...

Free

Maricopa County Library District: Earth Day Celebration!

MCLDAZ - Guadalupe Library 9241 S. Avenida Del Yaqui, Guadalupe

Come and celebrate Earth Day with us. We will learn some gardening techniques. Plant a sunflower seed in a pot for you to take home. All materials provided

Free

City of Chandler: Sow You Want to Start a Garden

Chandler Nature Center 4050 E. Chandler Heights Rd., Chandler

Start your very own garden! Learn the basics like soil health, watering, the best plant varieties for the desert, and how to cultivate your plants from seed to harvest. 16+...

$12 – $17