Are they trees ....... or not ?
Alien worms or Victorian Engineers?
Weird holes discovered in a cliff face beside the coast path, Sharpitor, S. Devon.
http://www.pbase.com/crustacean/imag...0/original.jpg
That is the way Victorian engineers had to work. Handraulic drilling and splitting of stonework to create a path from a solid cliff face with a sheer drop into the sea. Just to create a coastal walk for Victorian gentlemen while their ladies sat around in the safety of a tea garden half a mile away.