The Bay of Fundy has over 30 ft daily tides and over 40 ft spring tides. We arrived at low tide and enjoyed a long walk over the beach that would be under 30 feet of water in six hours.
The Magnetic Hill attraction may qualify as the fastest way to spend $5 in Canada. You get to drive "down" the hill and coast back "up". It takes all of one minute, if that.
It is free to get onto Prince Edward Island (PEI), but the toll to get off is over $40. We went over to drive a portion of the the scenic coast, make a short stop in Summerside and take in a lobster dinner. PEI was the only province I had not been in, so it was totally worth the toll. One more thing off the "bucket list".