The Khone Phapheng Falls, located in southern Laos near the Cambodian border, are part of the largest waterfall complex in Southeast Asia. The falls span nearly 10 kilometers across the Mekong River and offer a breathtaking display of nature's power. Visitors can admire the falls from viewing platforms, take a local boat ride, and explore the surrounding protected areas, where rare Irrawaddy dolphins can be sighted.