Central Asia is not really a kayaking destination for Westerners, and that’s unlikely to change anytime soon. This is not due to a lack of streams, rivers and lakes, though. There is some really beautiful, wild and lonely whitewater to kayak or raft in the different mountain ranges of Central Asia: Altai, Tien Shan and Pamirs.
Kyrgyzstan, Kazakhstan and Tajikistan are the main destinations for kayakers. Knowledge about where to go and at what time and the logistics of getting there with all your gear are the main issues for kayakers who want to explore Central Asia’s waterways. The authority on kayaking in Central Asia is Kayaking.su. Their website can answer most of your questions concerning whitewater kayaking in Central Asia. Riverzoo is another outfit with a lot of experience.
For those who like their paddling a bit less rough, long, slow meandering rivers ending in quiet mountain lakes may suit your taste. Tour operators can provide this kind of experience for you, or you can try organising it independently with the information found here.