These photos are from my visits to the Hopewell Rocks at both low and high tides. Walking among the rocks at low tide, you can tell by the shapes of the rocks how much the water rises at high tide. When I visited the next day at high tide, there were people kayaking around the same rocks that I had walked underneath on the previous day.
The Bay of Fundy in Canada has the highest tidal range in the world. To get a glimpse of this natural wonder in action, I visited the famous Hopewell Rocks in New Brunswick on two consecutive days. The first photo below was shot at low tide, while the second was shot at high tide. The visual comparison would have worked better if I had shot both photos from the same angle, but you can still see that all of the people in the first photo would be underwater in the second photo.