My memories of the scouts includes doing lots of daft stuff up hills, in water and playing with fires, axes and saws.
Part of the fun was doing stuff that felt a bit dangerous even though they were were pretty well supervised by adults who knew what they were doing.
I suspect that that the adults in charge tonight knew exactly what they were doing - let's face it launch boats from a field is much more Scoutish than doing it from a boring mooring.
Phoning the police was way over the top.
I'm Ok with them having fun. There was lots of space for them to park on the black asphalt thing with the bright yellow lines on it. Even better, they could have found somewhere to launch a raft that didn't involve trying to get it over a fence.
That would have saved a bit of effort. Inconvenient that fence, maybe a gap would make raft launching a bit simpler?. Darned inconsiderate, putting a fence in!. What about fun?.
Also, not only is the bank steeper than years ago, you have to navigate the culvert they put in:
Still there's plenty of fun for the kids. You can amaze them with tales of ye olde derelict post sorting office. But watch out scrambling up those banks. Funny folk who stick sharp needles into themselves lurk under the trees. Hopefully, this won't happen:
http://metro.co.uk/2017/05/04/girl-4-has-to-have-hiv-test-after-standing-on-dirty-needle-6616591/
For the record, I mentioned it to a friend who is a police officer and his answer was that if he'd been down there, he would have moved them on. There are better places to introduce kids to water related activities.