tldr: it’s a private installation which produces power for its owners, Bathgate Silica Sand. It is a 400kW floating photovoltaic (FPV) array of 650 floating solar panels on North Arclid Lake, an artificial lake at the Arclid Quarry in Cheshire.
I’ve driven a little around Portugal, and their roads were the worst I’ve ever driven on. Not just potholes, but the roads were often wonky and/or not flat (think like undulations like waves as you’re driving along), missing road markings etc. The quality drop was really noticeable when you drove from Spain into Portugal. It was about 8 years ago so it’s possible they’ve really got their act together since then, but I’m skeptical about how reliable their data is if Portugal is listed as the country with the 5th best roads in the world…
If you’re exerting yourself at all, you pretty much have to mouth breathe. The way I avoid gobbling up any flying insects is to keep my head down while breathing in. It’s surprisingly effective.
Slightly related, my son once had a bee go up his nose while we were out cycling. I say only slightly related because he wasn’t actually going that fast; he was only about 8. He stopped suddenly, complaining about something going up his nose. Neither of us realised what had actually happened until he coughed up a still-squirming bee in a pool of phlegm.