I am a malaysian. From kashgar, i would like to visit lake karakul & tashkorgan .Do i need visa/s?

Hi, if you are from Kashgar, you have a Chinese visa, right? if yes, I think it will not be a problem to visit those place in Xinjiang. But as I know, foreigners are not permitted on public transport anymore on this route, so you may need to engage a tour guide and driver.