Check out this nice piece of time-lapse video of clouds and rain rolling over Kowloon, initially East to West (across the camera line of sight), but sometimes and later southward into the camera. Kudos to Christopher DeWolf.
http://www.urbanphoto.net/blog/2010/07/06/watching-the-storm-roll-in/
As well as several trails up the Kowloon Hills, there are narrow roads to the eastern part of the ridge, with one running close by Kowloon Peak.
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