The Bay of Fundy - among other things like red sand-rock and whale watching - has the highest tides in the world (https://www.novascotia.com/about-nova-scotia/regions/bay-fundy-annapolis). When the tide goes out the ocean floor can be firm enough to walk on, have little pools, small ridges, and is usually pretty mucky close to shore. A beauty unique to itself - photo taken by Five Islands Provincial Park, NS, which provides a water tap up at the parking lot to clean off clothes, shoes and bodies before getting in your vehicle!