[C210N]

route of the Broomway seems to have been broadly consistent since at least 1419...

So much for climate change and rising sea levels.

Any prepared hiker would confidently and safely (except for the buried land minds) travel this with apriori knowledge of the local tides, and a walker's GPS. OTOH, any foolhardy writer in search of a story would not even think of it.

[Rebelbase]

I’d do it with a 6 hour tide window and no GPS. Would feel more comfortable with some sort of self-inflating flotation just in case.