That picture looks about right on the size of some of them. We stay on Pelee Island and take the larger, covered ferry. Like I said, I never go more then 1 mile from the island but they blow up real quick. I have no clue how big the waves were but I had a point of the island that I had to get around to get to my marina and I just about lost it on the point. Two of us went for it and the other boat closest to the shore got rolled over. They were fine and the boat got pushed up onto the rocks. They were able to recover the boat but I can't imagine how much that cost and how much damage they had to have. I never made it around the point. As the other guy lost it, I full gunned into a 180 and went about 50 yards and got up near the sandy beach. Did a stupid thing once and now I am like a baby on the water being very careful knowing how close I came to losing the boat.