The tides in the Minas Basin of the Bay of Fundy can rise and fall about 45 feet, or about 14 metres, in a six-hour cycle.

The blue line on the photo below represents the approximate high-tide line at Parrsboro, N.S.:

For human perspective, here's two folks at the foot of the wharf:

And finally, some small craft near the head of the wharf:

This Google map shows part of the reason for the exceedingly high tides in the Minas Basin:

Parrsboro is represented by the green arrow. The narrowest point of the basin is only about five kilometres across. That would be Cape Split, located where the map text says 'Minas Basin.' A fuller explanation can be found here.

Here's the Google Earth view of Parrsboro:

The red dot indicates my location when I took the three photos above. The pink/blue areas are exposed during low tide.