I have been looking a few times over the months and years regarding Cornwall and Devon.
Easiest place is at Crowndale near Tavistock, Devon.
Cornwall site at Saltash is much further.
This subject has been raised before, so it's at the front of my mind.
Having been into Tavistock Crowndale site many times, there are no warning signs about pedestrians or children or even horses and dogs!
It's a plan of mine to take my bike with the trailer on the back with bottles and/or cans and see if I can get in past the staff. If not, it's simple to go to Morrisons where they have skips for cans and bottles, so at least my ride won't be pointless.
I see on the Cornwall website that children are allowed, but the Devon website specifically states that they should remain in the vehicle.
Neither mention pedestrians or bicycles or the age of the cyclist.
https://www.cornwall.gov.uk/rubbish-rec ... g-centres/
https://www.devon.gov.uk/wasteandrecycl ... nd-safety/