Last week my son and I went out of Port Bruce for a few hour evening fish. We headed East almost to the windmills in 36-38 feet of water. We came across a white cylinder floating about 3 feet out of the water about 5 or 6 inch diameter with no markings that I could see, It was definitely anchored and not just floating in the current. Does any one know what this is marking? By the way from the reports the fishing was slow but we did manage 24 to bring home and had a great night on the water.