Nong Khiaw is a little rustic town partly settled along the bank of the Nam Ou River, one of the most important rivers in Laos. It is blessed with some of the most beautiful natural settings in Northern Laos: vertical limestone mountains, lush forest and mystical river. A boat trip from Nong Khiaw to Muang Ngoi or Pak Ou Cave would be a fantastic adventure in Laos.