Scotland and northern ireland?

Question

why do they not have a train from northern Ireland to Scotland like say from ballycastle to isle of mull

Answer 1

Probably because there is an expanse of water between the two called The Irish Sea...or maybe it's the Atlantic Ocean!

Answer 2

No trains, the salt water messes with the tracks...

But there are ferries between Scotland and Northern Ireland:

http://www.discovernorthernireland.com/a...