When I was in college I was one of the founding members of our club crew team. Crew is a very expensive sport, especially if you're starting with nothing. We started off using shells and boathouses of a neighboring school. If she is looking to go to college in the northeast, there are plenty of rowing opportunities varying from a varsity sport with scholarships to a club team. The ideal body type for a rower is tall and muscular, so if that's how she's built she'll be more favored for a spot on a college team.
More info about camps and area clubs can be found at
www.usrowing.org and
www.row2k.com/links