Boat exits. Kevin Van Bueren owns North Cascades fly fishing. He owned up to an oops moment regarding getting out of a small boat and gives us a lesson at the end of the story. One gentleman Remembers coming up there with his dad, he has memories for over 50 years so it is really neat for him to come back. He has Parkinson's. So he's in my boat and we decide to come to shore in order to go to the bathroom. We beach the boat in 11 inches of water and he is sitting up on two cushions in an aluminum boat. I wanted him to be comfortable because he has long legs. He was slightly on the edge of one of the cushions and I didn't realize that and I think his balance because of his Parkinson's, wasn't perfect. I said, hey I'm going to hop out of the boat right now and I hopped out and I didn't realize after unweighting my weight that he had shifted off to the side of his cushion until I saw the boat just flying up about 90°. I quick caught the boat and we both laughed and couldn't believe that that much water got in the boat. So, one, the boat should be stopped, obviously, if you are on the beach, it should be on the beach. Must be stopped. Next, one person out of the boat at a time and everybody in the boat should know when everyone else is moving. One of the worst mistakes people make is when one guy gets out of the boat and decides that he is going to be helpful so he leans over, he is not watching anybody else, and he is going to grab the boat and yank it up on the beach. The other people in the boat have stood up, totally erect, they are not balanced and the guy gives the Boulder yank and the next thing you see is the two people go out the back of the boat.