Bay Area Butterfly Festival

Get ready to flutter your wings and immerse yourself in the enchanting world of butterflies at the Bay Area Butterfly Festival!



 

Photo taken by SRCD

Join us at the Bay Area Butterfly Festival to commemorate Monarch Butterflies vital role in our ecosphere! This inaugural event will be held on Mare Island in Vallejo California, spreading awareness of its historic Monarch Over-wintering Site, and the overall importance of pollinators. Come and Enjoy this fun and exciting opportunity for people of all ages!

June 1st, 2025

10am – 5pm

Mare Island Promenade, 860 Nimitz Ave, Vallejo, CA


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Come Join the Crew! Be a part of this important event and embrace the Monarch Madness! Want more Information?

Thank you to Jaimie Esp for making this video of the Bay Area Butterfly Festival 2024!

Mare Island’s Monarch Overwintering Site

St. Peter’s Chapel Park is home to Mare Islands historic Monarch overwintering site! Learn more about overwintering Sites here!

Our Mission & Purpose


  • Educate people on the importance of pollinators and what they can do to take action.
    Most people don’t know that Monarchs and other populations are declining. At the festival, people will learn what they can do to save our local butterflies and pollinators, ensuring healthy food systems for generations to come. 
  • Support and Empower our Youth.
    This festival will raise a significant amount of funds to support a 5-year “Pollinator Protectors” project to educate elementary students through presentations, activity books, hands-on activities and hands on installations of Waystation/pollinator gardens.
  • Reinforce Sustainable Practices.
    Large gatherings of people at festivals traditionally result in overconsumption of one-time use plastics.  This will not be the case at this festival. This low-to-no-waste festival will highlight the importance of sustainability in this vital Monarch over-wintering site.
  • Put Solano County as a whole, on the eco-tourism map.
    Our county is a critical hub on the Monarch migratory path. We even have a historic overwintering site on Mare Island that most people are unaware of (as seen to the left). We want to join the ranks of Pacific Grove, Pismo Beach and Santa Cruz as a popular place people visit to see the Monarchs flutter through our towns mid-Summer and throughout the Fall as they travel to their overwintering sites.
On May 19th, 2024, The Monarch Milkweed Project and the Vallejo People’s Garden, in conjunction with the Solano and Contra Costa Resource Conservation Districts, and Sustainable Solano held the largest Butterfly Festival on the West Coast on Mare Island, Vallejo, California.

We want to thank our Hosts, Partners, Sponsors and Donors!


For inquiries please email us!