Kiu Tau in the background
The next sequence sees them all disembark from their boat onto a pier. This is also in Sai Kung because we can see the shape of Sharp Island (and the connected Kiu Tau) in the background. Now, I'm not sure that this is the current (older) public pier that is in Sai Kung. I suspect it is but it has been given a complete overhaul since this series was made. However, it's quite possible that the pier has been completely rebuilt in the intervening time, I'm not certain.
So anyway, there they all are in Sai Kung when all of a sudden the camera shot immediate following shows them all walking down the Victoria Harbour waterfront next to the (now demolished) New World Centre!! I mean come on, this is just a jump too far. One scene is the rural waters of Sai Kung, all of a sudden to be replaced by busy Victoria Harbour. I get the feeling that this scene would jar even with someone unfamiliar with HK geography, it just doesn't work well at all (much like the whole episode HA!).