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Ongoing

Maricopa County Parks and Recreation: Estrella – Invasive Species Removal

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

Meet at the park’s Nature Center. Join us in removing invasive species and reducing wildfire risk in our parks. Participants will learn to identify several invasive species, their phenology and...

Free with Park Fee

Maricopa County Parks and Recreation: Estrella – Invasive Species Removal

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

Meet at the park’s Nature Center. Join us in removing invasive species and reducing wildfire risk in our parks. Participants will learn to identify several invasive species, their phenology and...

Free with Park Fee

Maricopa County Parks and Recreation: San Tan – Invasive Species Removal

San Tan Mountain Regional Park 6533 W. Phillips Rd., Queen Creek

Meet at the park’s Nature Center. Join us in removing invasive species and reducing wildfire risk in our parks. Participants will learn to identify several invasive species, their phenology and...

Free with Park Fee

Maricopa County Parks and Recreation: Spur Cross – Invasive Species Removal

Spur Cross Ranch Conservation Area 44000 N. Spur Cross Rd., Cave Creek

Meet at the main parking lot. Join us in removing invasive species and reducing wildfire risk in our parks. Participants will learn to identify several invasive species, their phenology and characteristics, and how to effectively remove these invasive plants. The initiative is to remove invasive plants as a proactive step toward ecological restoration and to...

Free with Park Fee

Maricopa County Parks and Recreation: Lake Pleasant – Earth Day Clean-Up

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

Earth Day Litter Pick-Up at beautiful Lake Pleasant Regional Park. Volunteers can choose to pick up litter along the shoreline, day-use areas, and campgrounds. Volunteers will be working in the elements and walking on uneven and rocky surfaces- a volunteer must be able to walk on these surfaces and tolerate working outdoors. Name of person-in-charge...

Free with Park Fee

Chandler Nature Center: Earth Day Celebration

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

The Chandler Earth Day Celebration brings the community together to show Mother Earth some love! Discover ways to live an eco-friendly lifestyle through crafts, activities, and information booths featuring a variety of organizations. Enjoy a day at the Chandler Nature Center and enjoy the beautiful landscape of Veteran's Oasis Park while learning about conservation and...

Free

Natural History Institute: Prescott Earth Day Celebration

Join the Natural History Institute at the 2025 Prescott Earth Day Celebration! Visit the Downtown Prescott Courthouse Plaza on April 19th for over 60+ educational booths, exhibits, and activities to protect & celebrate the place we live!

Free

Children’s Museum of Phoenix: Going, Going, Green – Stewards of the Earth

Children's Museum of Phoenix 215 N. 7th St., Phoenix

It’s Going, Going, Green! Month, let’s learn about being good stewards of the earth! Visit Star Bar on the 2nd floor to learn about recycling in Phoenix, what to do with your recyclables, tips on composting and how to help animal habitats with a fun matching game. Make sure all the animals go to the right home!...

Free with Admission

Watershed Management Group: Family Saturday – Beaver Believers!

Watershed Management Group Living Lab and Learning Center 1137 N. Dodge Blvd., Tucson

Join us at the Living Lab on Saturday, April 19th from 10:00am - 12:00pm to learn about the return of beavers to Tucson's rivers and what you can do to help them. This event is free for the whole family! This month’s featured activities include: Learn about beavers through arts and crafts, science experiments, and help to...

Free

Phoenix Herpetological Sanctuary: Facility Tour

Phoenix Herpetological Sanctuary Actual location given after reservations, Phoenix

Interact with some of our special animals, which for many people is a once in a lifetime experience.  Guests will get to learn about endangered species, how we contribute to conservation of those animals, some of the considerations we must take into consideration when having these reptiles in Arizona, which reptiles are good pets for children or adults, adaptations...

Free – $25

Pima County Public Library: Earth Day Crafternoon!

Pima County Public Library - Quincie Douglas Library 1585 E. 36th St., Tucson

Join us for a fun afternoon of crafting up special gifts and goodies to celebrate Earth Day! We will provide all crafting supplies and snacks to fuel your creativity!

Free

Embry – Riddle Aeronautical University: Whale Super Highway

Embry - Riddle Aeronautical University Jim and Linda Lee Planetarium 3700 Willow Creek Rd., Prescott

Show Times: Saturday, April 19: 2 p.m., 3 p.m. and 4 p.m. Whale Super Highway follows humpback whales and blue pygmy whales on their 4,000-mile migration down the coast of...

$7.50

Southeastern Arizona Bird Observatory: Hummingbird Banding at the San Pedro House

San Pedro House 9800 Highway 90, Sierra Vista

Up to 10 species of hummingbirds use the green corridor of the San Pedro River as a freeway between their tropical winter retreats and their northern nesting grounds. The public is invited to get a close-up look at these tiny travelers as staff and volunteers from the Southeastern Arizona Bird Observatory capture, band, weigh, measure,...

Free