Yesterday we departed Montreal and traveled to Trois Rivieres. As we get further out on the St Lawrence, there are increasingly few places to stop, so each day needs to be planned a bit more carefully. In addition, we have transitioned from straight outgoing current and steady water levels, to a combination of river current plus tide ebb and flood, and increasingly large tidal water levels. Because of the tidal currents, travel time needs to be aligned with the tides so you are going with the current, not against it. Not only does it make for faster travel, but it avoids a nasty situation where opposing river and tidal currents make for an uncomfortable chop in the water. But enough of that....
We arrived at Trois Rivieres late yesterday afternoon, and because of the tides didn't leave until noon today, finally arriving in Quebec City around 7pm. The marina here is really cool, with an enclosed basin that you enter to get our of the river current, followed by a lock into the marina basin. Quebec has a 14-16' tide, and to shield the marina from that, there is a lock. At high water they leave it open to flood and flush the marina basin, then over the course of the low tide cycle people can enter and leave via the lock.
Here's an updated map showing incremental progress (green) since Montebello. We've covered another 250 miles for a total of almost 1200 miles so far.
At this point daily mileage will be much higher overall - probably in the 60-100 miles per day range. This is partly because we no longer have any locks to slow us down, but also because there just aren't any stops closer together.
That said, I think we are going to stay in Quebec for about a week. Right now to catch the tides to our next location would mean leaving mid/late afternoon and arriving at 8-9pm, or leaving around 2am and arriving at 8-9am. Neither of these is appealing, so we are going to wait for the tide cycle to come around to a more favorable time of the day. It will also give us a a chance to do some broader exploration of the greater Quebec City area.