Working with you
to keep Casco Bay blue

Become a member

Join us at an upcoming event

Friends of Casco Bay’s mission is to improve and protect the environmental health of Casco Bay. 


Our areas of work are:


We “listen” to Casco Bay by collecting water quality data, enabling us to identify threats to the health of the Bay. We track water quality year-round from our three Continuous Monitoring Stations, and collect seasonal water samples from 24 locations around the Bay. 


Advocating for clean marine water is at the core of our work. Led by our chief advocate, the Casco Baykeeper, our staff and community lend the Bay our voices. We advocate for the health of our coastal waters in town halls and the state legislature, and work with businesses and environmental agencies to promote clean water policies and practices

Community Engagement

The name Friends of Casco Bay was chosen with purposeful intent. It takes a community to care for the Bay. We host events to educate the public on issues affecting the Bay and coordinate volunteer efforts to improve its health. We are proud to say that our volunteers and supporters are among the Bay’s most dedicated ambassadors.


Get to know us. Read our stories.

Offshore Wind Update

March 20, 2023

Maine’s Offshore Wind Roadmap, a plan for the development of offshore wind in the Gulf of Maine that provides jobs and clean energy to Mainers,… Read more

Water as Inspiration: Art and Casco Bay

March 14, 2023

Casco Bay is tied to our quality of life. It’s where we go for solace, support, and inspiration. For some, that inspiration is taken a… Read more

“Secrets of the past” – Malaga Island and Casco Bay

March 9, 2023

Most Friends of the Bay can agree with the words, “I love Casco Bay.” In one way or another, the Bay is an important and… Read more


Friends of Casco Bay’s Successes



How you can help:


Photograph by Kevin Morris


Photograph by Dave Dostie

Email Sign Up

We’re proud members of


Cover photo: Photograph by Kevin Morris