Unfortunately, I’m of the other opinion. I cannot stand those little cairns people build. I understand they may hold some importance to individuals but I’m not a fan and think they spoil the wilderness and scenic areas. They are also growing in popularity in Skye from what I hear
We had a "world famous cairn builder" come to a local beach holding half day workshops for a few hundred quid per person. He couldn't keep up with the demand from bored housewives!
Sometimes at the beach I build one for the Mindful Photography groups, but always out of the way, so it's unseen and hidden, not distracting from the landscape. I have good fine reflexes and spacial awareness, etc, so can get them quite high whilst using smaller rocks.
I always thought that a cairn was traditionally used as a marker for journeying across land, and that a rock pile was a marker for a persons burial site.