Feels like the best balance. I’ve been in extremely remote locations with no official trails and in those contexts these cairns can be literal lifelines. But if

Feels like the best balance. I’ve been in extremely remote locations with no official trails and in those contexts these cairns can be literal lifelines. But if the people managing the park are saying “Yeah, go ahead and knock them over please”, then go for it. The converse of this is probably what prompted this, where you have well maintained trails absolutely polluted by the presence of these things and they only serve to distract from the natural beauty. I’m decently outdoorsy and I see that a lot more than my first example.