It seems that any "magical" location which has appeared in a Harry Potter franchise, Outlander or Pokemon movie needs not only a car park, but toilets, a visitor centre, plus a network of paths, bridges and viewing platforms. Apparently all in the name of "safety".
"They had to destroy the tourist attraction in order to save it".
https://bellingram.co.uk/2019/09/30/finnich-glen-planning-application-lodged-with-stirling-council/