Personal Flotation Devices (PFDs): A Canadian approved PFD is designed to keep you afloat in the water. PFDs were designed for use in recreational boating and are generally smaller, less bulky and more comfortable than lifejackets.
The Erie Canal, in New York state (shown below), was 360 mi (580 km) long, and connected New York with the Great Lakes via the Hudson River. Locks were built to overcome the 571-ft (174-m) difference between the level of the river and that of Lake Erie.
Chemung Canal. Stretching from the head of Seneca Lake at Watkins Glen to the Chemung River at Elmira, NY, this segment of the canal system revived the economy for towns along the south of Seneca and Cayuga Lakes. Finished in 1833, the construction effort resulted in a significant drainage in the swampland at the head of the lake.