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Literally meaning “4,000 islands”, Siphandone includes the Khone Falls, which is the largest waterfall complex in the world, formed by the Mekong River becoming very wide and more shallow. Here, the Mekong River becomes a maze of rivulets flowing between small and large islands, spanning 485 square kilometers before flowing into Cambodia.
Located in Champasak province, Siphandone is known as one of the most unique riverscapes in Laos, rich with sediment and naturally protective barriers that have allowed a wide variety of species to flourish in the waters and surrounding forests while supporting human settlements.
Flooded and lowland forests, deep pools, rapids, river channels, and seasonally submerged islands have made Siphandone a biodiversity treasure trove. It is home to around 200 aquatic species, including the critical Mekong giant stingray, and was previously the last habitat for freshwater dolphins in Laos. It supports the livelihoods of over 100,000 people and is under consideration for Ramsar site designation.
Working Together in Siphandone: Key Activities
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Conduct biodiversity surveys and monitoring
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Promote sustainable and climate-smart livelihoods
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Raise awareness on conservation through schools and community outreach
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Create fish conservation zones and support fisheries law enforcement
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Establish and build capacity of community patrol teams
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Implement climate resilience through nature- and ecosystem-based adaptation
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Engage communities in wetland and river ecosystem protection
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Support community-based forest restoration and sustainable forest management
Our Vision for Siphandone
With increased financial capacity and strengthened partnerships, Siphandone could become a model of integrated freshwater conservation in Laos. Future efforts would focus on restoring critical habitats, protecting endangered aquatic species, and supporting sustainable, climate-resilient livelihoods. Priorities include strengthening community-based fisheries co-management, expanding nature-based solutions, and improving ecosystem governance.
Given its exceptional biodiversity and importance to over 100,000 local residents, Siphandone is also under consideration for Ramsar site designation – an important step toward securing long-term ecological health and human well-being in one of Laos’ most vital river landscapes.
