The document discusses a forum on conserving the environment and an exhibit on stone and water. It summarizes photographs taken during the El Niño months of 1998 showing rivers and streams in regions like Cavite, Laguna, and mountains like Mount Banahaw. It also shows turn-of-the-century bridges, gorges, and esteros in Manila, and photographs from field trips to waterfalls like Alalum Falls and dams like Ambuklao Dam and Pantabangan Dam in various conditions.