The Norwalk River is tidal, and the height of the river can swing by over 8 feet in some lunar cycles. Our rowing patterns are adjusted depending on the current state of tide.
Here are links to some tide tables we have used (none are suitable for navigation):
https://tidesnear.me/tide_stations/2749
http://tides.mobilegeographics.com/calendar/month/5995.html
http://www.tides4fishing.com/us/connecticut/south-norwalk
http://www.tides.info/?command=view&location=South%20Norwalk%2C%20Connecticut