Fathom Five National Marine Park The Bruce Trail We toured the 7 million dollar new Fathom Five National Marine Park visitor centre and observation tower which was in the process of having it's grand opening in Tobermory. It was very impressive with displays on shipwrecks, caves, historical data, lighthouses, flora, fauna, animals, fish, glaciers, rocks, orchids, native people, trees, the eastern massasauga rattlesnake, black bears, flower pots and so on. The new observation tower is 65 feet high and you can see all the islands that encompass Fathom Five (Cove, Flower Pot, Bear's Rump) and down to Cabot Head headland at the corner of Georgian Bay. Fathom Five National Marine Park is home to 26 know ship-wrecks preserved in the cold clear water, 3 lighthouses, caves, flowerpots (limestone formations) and some of the purest water in the Great Lakes. The 800 km. Bruce Trail is a hiking trail that follows the Niagara Escarpment from Queenston Heights to Tobermory.