The Yellow Muffler - Betty Ting Pei (1972) - Former Fire Brigade Dock, Tsim Sha Tsui

The stone pier where Pai-hung (Betty TP) is supposed to stunt-double for an actress and leap into the water was filmed at the old L-shaped govt pier near the old Fire Station. This pier has been seen before on the blog when it doubled for Hankow (now known as Hankou) in The Sand Pebbles. The Yellow Muffler scene was filmed at the right-angled part of the pier that makes up the L-shape.

The north edge of the pier has been incorporated in to the West Kowloon Reclamation, and the lower part of the L-shape was removed/remodelled. I don't think this part of the waterfront is open to the public due to its proximity to the China ferry pier and also due to the Fire Brigade seemingly still using it for their fireboat, but this image on GoogleEarth shows you what remains of the old structure (the right angle L-shape section was removed and replaced by a less acutely angled section. Look carefully at the image I linked to and you can see the granite blocks (on the pier edge by the concrete hut) that formed part of the original structure. That also happens to be where the right angled section of the pier started. There's a small semi-circle of bricks by there that marks where the turn was.