KMB Route 51

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Route 51 is a bus service operated by Kowloon Motor Bus (KMB) in Hong Kong's New Territories. It connects Tsuen Wan (Nina Tower) with Sheung Tsuen, a village in Pat Heung running via the steep and tortuous Route Twisk.

This route is the only public transport running along the whole length of Route Twisk, which is considered by its operator to be a kind of corporate social responsibility, providing a minimum service for the area along.