In reply to planetmarshall:
I'm not sure who you think is mystified, sorry!
I'm seeing a huge increase in the number of people going to places that have been pretty quiet for decades, places I've often been able to have to myself, or shared with very small numbers of others. You've maybe not had the good fortune to experience that, I suppose.
It's pretty obviously down to them being posted on the internet lots, particularly through social media, with an additional surge due to more people getting outdoors more often through covid times and desperate to get away post-lockdown, and fewer getting abroad, probably also coupled with a rise in car ownership. A lot of this is good - people getting out more and seeing great places - but some of it is not - littering, fouling, irresponsible fires, music in formerly quiet places.
It's not really much of a mystery, though!
Post edited at 18:32