As a reservoir keeper I see this kind of thing quite often. A young lad drowned in one if our reservoirs a few years ago and his mates continued to dive in from a tower while the police were still looking for him! Totally senseless and what a waste of a young life. I’m half expecting to have a call out over weekend telling me something similar has happened. A river, reservoir, canal or the sea, it doesn’t matter, keep out if you’re not capable