I can just imagine the 'modern man' wearing armour, wielding a sword and hooking into those invaders of yesteryear - *walks beamwards and perks over into the current sea of iniquity*
The river Cam is in a poor state of preservation and is quite frequently taken away for restoration. Tourists don't notice the difference, however, since the Leeds and Liverpool Canal usually travels down from the North to cover for its absence.
Loch Lomond is taking all this week off sick with stress too. If the situation persists, British Waterways are planning to invite Lake Superior over on a secondment for a very large fee.