Thanks again
Tramayo . The so called patio "tiles" are from B&Q and were labelled composite paving tile edge, 40x20x4.5 cm, covers 0.08 sqm. Their B&Q stock number is 5052931491230. The sun mysteriously comes out between the showers and goes away when it gets dark. If I'm very lucky I wake up and see it again the next morning

.
Here's another picture of some early morning sun to cheer you up.
Sorry there's no plywood to bemoan and I hate to think what the Health and Safety Fanatics made of the position of the station. In defence I can point out that it has survived for about 25 years and none of the passengers or rail staff have fallen to their deaths

. There is, however, a good opportunity to point out the limited lifespan of the log-roll path edging at the border with the scree slope.
Thanks to
Chris Vernell for pointing out that WBP plywood is not waterproof, I hope that
Tramayo &
PhilP take that on board when making any additional comments on the quality of ply

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Can I add an additional proviso, before the naysayers get there first, that the inexpensive softwood decking planks are also not waterproof, don't last forever and are definitely not as good as they used to be

.
That's a good point
ntpntpntp. I did worry about running trains on elevated sections but I rather enjoy the frisson it brings to garden railways. For real excitement have a look at this: https://www.youtube.com/watch?v=uK16WKGdCjc , posted by
Phil on the "Show us your racks !!" thread.
Any suggestions for guard rails?