When you visit Maya Lin's Wavefield at the Storm King Art Center, do not climb on the wave hills.
The waves, by the way, look at their best from the crest, with a sea of people on them like a flotilla of human jetsam lifted by the rising seas. Only you must walk in the troughs of the waves, not surf on the tops.
Maybe we could just have fun with our art and let future generations decide if they want to keep em' or let them rot. Why keep the fingerprints off something no one's going to want fifty years from now anyway?