So this is where the passengers left and climbed the remaining 200ft to the Dyke, between the years of 1887 and 1938/9.
Towards the end the trains were but a carriage long, but on the last day, people flocked to be part of history and as you can see from this image more carriages were needed:
Before the 30's there was a small tea shop, possibly where you're standing called Dennett's Corner, where the people could brace themselves for the rest of the climb. Apparently a pot of tea, with bread & butter and cake was 6p. Talk about inflation!

Unfortunately, this shop was also victim of the buses, as the bus passengers bypassed the shop.
And like those before us we have reached the final destination, why not take a seat and watch the train uncouple and work its way around to the other side of the .. oh, right..we have not actually timeslipped. If you want to go to the Dyke, carry on, follow the path, it'll turn right after 50-100 metres, follow it. There's a great series up there, which you've probably done already, but if not then you're missing out! There are other small caches and multicaches, but also there is food, drink and toilets available, as well as ICE CREAM and of course brilliant views. Why come all this way and then turn around now?
The 2014 view

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Doing the series by bus:
The bus is recommended (ironic), as this isn't a circular series.
To start at CC1 get a 5 or 5A, get off in Old Shoreham Rd at the Aldrington Road stop and walk down to the station. To start at CC7 get a 5B and get off at the Dyke trail start. The Dyke bus is the 77 (catch at the hotel), which is sometimes open-top, but at certain times of the year-autumn/winter this service only runs at the weekend.
Cars:
There are various car parks and roads along the route, especially at CC7. You may want to do sections and then go back to your car, drive to another car park and do the next section.