The Hudson River Sloop Clearwater is a historic sailing vessel launched in 1969 to promote environmental awareness and advocacy for the Hudson River. Designed as a replica of the traditional sloop boats used in the region, it serves as a floating classroom for educational programs focused on ecology, history, and sustainability. Operated by the Clearwater Organization, the sloop offers public sails, educational trips, and community events. It plays a vital role in raising awareness about the importance of preserving the Hudson River and its surrounding ecosystems, engaging people of all ages in environmental stewardship.