The Four Thousand Islands is a picturesque region located in the Mekong River in southern Laos. This area consists of numerous islands, with the most notable being Don Det and Don Khon. The islands are known for their stunning natural beauty, lush landscapes, and tranquil atmosphere, making them a popular destination for travelers seeking relaxation and adventure. Visitors to the Four Thousand Islands can enjoy activities such as cycling, kayaking, and exploring waterfalls like Khon Phapheng, one of the largest waterfalls in Southeast Asia. The region is also home to diverse wildlife, including the endangered Irrawaddy dolphin, which can sometimes be spotted in the river.