Choose an appropriate liner size and thickness to suit the pond’s shape and expected traffic. Protect the liner with a geotextile layer and ensure the excavation has no sharp protrusions. Lay the liner loosely and avoid pulling it tight across corners. Place Pond liner clark rubber centrally and shape it into steps and planting shelves without stretching. Anchor the rim with heavy materials and backfill in stages while filling with water to remove creases. Once stable, finish the edges with attractive coping and consider UV-protective measures.