part of what you're doing is teaching kids the adventure of the hudson river. >> absolutely. you know, a lot of these students live within half a mile of the river but have never been out on it. >> reporter: in 2013, chip reynolds captains a replica of the "half moon" as a teaching ves sel for middle school kids. each year in mid-september he makes a voyage from lower manhattan to albany. it's the exact route henry hudson took along an unexplored waterway that would eventually bear his name. hudson was an adventurer but he was also a business man with the dutch east india company. >> we had to document everything precisely for trading purposes. for example, making the happens, you can take the maps he made from 1609 and lay them against maps today and they're almost precisely the same. >> like hudson's crew, reynolds' kids say about is -- stay busy.