Firstly, I can see there are a new building like the cafes & shops behind Lifeboat , and the second showers & toilets next to first park car from the south.Also, some buildings replace the way of using it. For example in the first plane we can consider that there is Fishing boats and marina ( private yachts ) they are replaced each other now. Secondly, they built a new Dock to have more ships in Porth Harbour and a nice Hotel with a private beach, we can consider that the beach was public in the past, but right now is not. Also, we can see that in the past there are only 2 ways to enter into Porth Harbour, and nowadays we have 3 ways one of them is the same as the past but with new road to the hotel, and 2 of them are from car parks