Get outside, give back, and learn about our planet by checking out a few of the Earth Day events happening around OC.
Mission San Juan Capistrano Annual Earth Day Celebration
On Wednesday, April 22 from 9 a.m. to 2 p.m., Mission San Juan Capistrano is holding its annual Earth Day celebration. Some of the events at the Mission include honey sampling and learning about pollination, garden tours and kids craft activities.This event is free for Mission Members and included with a paid general admission Mission ticket. 26801 Old Mission Road, San Juan Capistrano, missionsjc.com/earth-day-celebration/#EventInformation
Newport Bay Conservancy: Earth Day at the Bay
On Saturday, April 18 from 10 a.m. to 4 p.m., the Newport Bay Conservancy is hosting an Earth Day celebration full of live music, booths featuring arts and crafts, a scavenger hunt, and environmental themed exhibits from local artists and community partners. The event will also have an assortment of food trucks for visitors as well as prizes and giveaways. No reservation is required but guests are encouraged to RSVP. Parking is free at the venue but limited. Peter and Mary Muth Interpretive Center, 2301 University Drive, Newport Beach, newportbay.org/earth-day/
Costa Mesa Earth Day Fair
From 10 a.m. to 2 p.m. on Saturday, April 26 Costa Mesa City Hall is hosting its Earth Day Festival with activities ranging from free locally sourced food, tree planting, games, and activities including learning how to compost and recycle as well as raffle prizes. The event offers free entry for all ages. 77 Fair Drive, Costa Mesa, oclandfills.com/events/costa-mesa-earth-day-fair
Bolsa Chica Conservancy Earth Day Event
From 10 a.m. to 2 p.m. on April 26, Bolsa Chica State Beach is hosting their annual Earth Day fair. Activities for this event include a beach clean up, bounce house, and games. Across the street at the Bolsa Chica Interpretive Center, there will be local environmental agencies and organizations to provide information about the wetlands and the coast. Visitors will get the chance to touch snakes and tide pool animals as well as participate in arts and crafts. Parking and admission is free for this event located near Lifeguard Tower 27. 3842 Warner Ave., Huntington Beach, bolsachica.org/earthday/
OC Public Libraries Earth Month 2026
Throughout the month of April, OC Public Libraries are partnering with OC Waste and Recycling to host Earth Month-themed activities and events including author talks, film screenings, and arts and craft programs such as turning old t-shirts into tote bags, making an egg carton bird feeder, and planting wildflowers. Activities and programs will be held at multiple libraries through April 30. Various cities, ocpl.org/earthday
Mission Viejo Earth Day/Arbor Day Celebration
From 8 a.m. to noon on Saturday, April 25 the City of Mission Viejo is holding an Earth and Arbor Day Celebration at Oso Creek Trail, where volunteers will be planting trees and shrubs. The city is also hosting a Green Expo along with tree planting, earth-friendly activities, and environmental exhibits. Lunch and ice cream will also be available for volunteers. More information on parking and recommended clothing and supplies to bring to the event is available on the website. Oso Creek Trail, Mission Viejo, missionviejo.gov/events/earth-dayarbor-day-celebration-0
Niguel Botanical Preserve Earth Day & Arbor Day Celebration
The Niguel Botanical Preserve is inviting volunteers on Saturday, April 18 from 8:30 a.m. to 11:30 a.m. to help upkeep the gardens by planting and adding mulch. Gloves, tools, and snacks will be provided, and there will also be plants for sale in the amphitheater. Sign ups are required for this event. 29715 Crown Valley Parkway, Laguna Niguel, cityoflagunaniguel.org/m/newsflash/home/detail/1190