Handysnaks think recreational purpose as per the ANO
H500, The ANO specifies that the rule (in this case), applies to any city, town or settlement, not any and every area of countryside!
As just about every National Park is there because it is an area of spectacularly beautiful countryside, then the rule doesn't apply. The caveat of course, is that it does apply to a city, town or settlement that does happen to be in a national park!