Starting and finishing at Chiang Khan Police Station, the route runs alongside the Mekong River.

Source: https://www.pattayamail.com/thailandnews/july-2023-is-packed-full-of-amazing-festivals-and-events-around-thailand-434557

The government in February issued a sub-decree on the creation of the dolphin conservation and protection zones covering a 120-km-long stretch of the Mekong River in the two provinces.

Source: https://www.canindia.com/cambodia-reports-2nd-rare-mekong-river-dolphin-death-this-year/

The Mekong River drains a basin spanning six countries, underpinning ecosystems, biodiversity and vital regional supply chains and industry.

Source: https://southafricatoday.net/environment/dam-building-on-mekong-poses-risk-to-regional-industries-report-says/

"This time Dale and I are aiming to complete another great challenge - cycling over 500km from Vietnam to Cambodia alongside the Mekong river.

Source: https://www.ardrossanherald.com/news/23847727.kilwinning-man-set-500km-marie-curie-vietnam-cycle/?ref=rss

To wit, Beijing’s Lancang-Mekong Cooperation (LMC) framework was established in 2015 to deepen Chinese links to the Mekong as an economic subregion.

Source: https://thediplomat.com/2023/04/no-mainstream-the-mekongs-competing-definitions/