Sii Pan Don or 4000 Islands are an area of the Mekong river at the border of Laos and Cambodia. Here make some rapids and waterfalls the Mekong river not passable for ships, while forming many river arms and channels – and so to say forming 4000 islands. Actually nobody knows how many islands there really are, because of the Mekong high waters changing the landscape continuously. Our destination Don Det is a very good place to come down and chill for some days. All done right.