- Through Adam Green's nonprofit, South Bronx youths build boats from scratch
- Rocking the Boat allows them to develop self-confidence and communication skills
- It also allows the students to explore the Bronx River, which boasts wildlife like fish and birds
- Do you know a hero? Nominations are open for 2014 CNN Heroes
Bronx, New York (CNN)It started with a challenge Adam Green accepted almost 20 years ago.