National Park Service — Washington, DC, DC
volunteer
Source: Official Volunteer.gov
Come together to help the Potomac Conservancy keep garbage out of the Anacostia River!
Gather in the Poplar Point area of the park (38.8669° N, 76.9945° W) at 9:00 AM where volunteer leaders will provide all necessary equipment. Please dress for the weather, wear sturdy closed-toe shoes, and bring water.
Grab your spot by registering with Potomac Conservancy!
Apply on the official agency site (link above).