Alpine Steppers Hand picked, unmodified naturally weathered south island schist. Can be used to create a beautiful natural path in any garden or make the perfect addition to a water feature. With its hand-picked, unmodified naturally weathered south island schist, Alpine Steppers adds a touch of natural beauty to any garden or water feature. It's a durable and visually striking material for creating an organically stunning path or enhancing a water feature in your garden. The hand-picked, unmodified south island schist adds a unique element of nature to your outdoor space.