Hudson River Sloop Clearwater, Inc., is a not-for-profit, member-supported environmental education and advocacy organization dedicated to the restoration and protection of the Hudson River and similar waterways. Its members own and operate the 106-foot sloop Clearwater, launched in 1969, as a floating classroom on the tidewater Hudson. In addition to educational sail programs, the organization provides land-based field trips and classroom presentations, teacher workshops, and curriculum materials.

Support the Hudson River Sloop Clearwater by making a donation below.