Join us for the 26th year of the Earth Day Charles River Cleanup and give back to the river and parks that are a centerpiece of the community!

2025 Cleanup events will be taking place April 25th and 26th from 10am–12pm. The Cleanup is one of the most important events of the year to build awareness and raise funds in support of a cleaner, healthier, and more accessible Charles River. On these days, volunteers and groups will clean up an assigned stretch of the Charles River Basin (Cambridge, Watertown, and Allston/Brighton).