But...
Yeah, my bike's not quite so exotic (but I'm fond of it all the same).
And there's a YouTuber who's been riding around in search of pill boxes in Kent: https://www.youtube.com/@JVaughanKeyholePictures/videos (There are three videos, although sometimes he uses a motorbike instead of a pushbike.)
No pillbox photos but I can give you a burnt out APC if that’s any interest?
Got a two mile line of concrete anti landing blocks on the costal path near here and there’s a few pillboxes hidden in the forestry plantation on the other side of the Tay estuary.
Cool thread. There are a ton of them around the coast and along the Thames. Have to be careful inspecting them though because of drug needles, crazy people, or foxes having a kip.