If you're having trouble figuring out how to read the tide charts provided as links in the Tide Times page of this website, then you may find this sample chart helpful. This is a chart for Burntcoat Head (Nova Scotia) for June 23, 2008.
You can see that on this day there are two high tides and two low tides. In any chart the high tide is identifiable from the low tide because it's the row with the bigger numbers (in metres & feet). Even when the tide is fully low, there is still a measurement indicated for low tide because the Bay doesn't completely empty like a bathtub!
Note that tide times move ahead about 52 minutes every day. So the high and low times for Burntcoat on Friday, June 27, will be about 4 hours later than the Monday tides. The Tide Times page enables you to search times for your travel dates.