We were intrigued by this sign on the seafront bike path running north from the resort of Bridlington, on the east Yorkshire coast.
I've seen some genuine shared railway/bike facilities, where bikes actually do ride right along the railway line itself. (On remote narrow bridges in rural New Zealand, for example, outside Pukerangi in Otago.)
Obviously this is just one of those seaside-prom sightseeing jobs, though. The train itself was further up, and was full of passengers on mobile phones saying 'Hi, it's me, I'm on the land train'.