Ruak

The Ruak is one of Myanmar's longest rivers. It is a Mekong tributary on the right bank. The Ruak river's mouth is on the Thai-Burma border, directly across from Laos, and is known as the "Golden Triangle" a renowned tourist destination. The name "Golden Triangle" was created by the CIA to describe an area of approximately 950,000 square kilometers that covers the mountains of three neighboring countries. For a true jungle experience, take a long-tail boat tour of the river and its forested banks, accompanied by a camp team.

The Ruak River rises in the Daen Lao Range in Shan State (Burma) and meets the Mae Sai River near Thailand's northernmost tip, where it becomes the border river between Thailand and Burma. It then flows eastward till it reaches Ban Sop Ruak, Tambon Wiang, Chiang Saen District, Chiang Rai Province, where it drains into the Mekong River. The river's boundary part is 26.75 kilometers (16.62 miles) long.

Total length: 203 miles (shared with Thailand)