Oh come on.....People do talk about a small Hole or crater with one end at Kaidarnath = Kedarnath, UK and other at Pahupatinath = Pashupatinath, Nepal. Coin donated in Kaidarnath will appear in Pahupatinath Nepal.
We are living in a scientific world. These are all mythologically (which are actually Myths, not facts) linked talks which actually are no roots in real world.
To my knowledge only water and gases can travel in earth that too for a few kilometers.
I just can't buy this story that a metallic coin dropped in whatsoever size of hole can actually all across the axis of himalaya and appear in Nepal.
It is possible if there are limestone caves underneath but the places we are talking in is actually a granitic terrain where such caves are just not possible.
To knit the religious places such stories are propagated.