What is a coastal burgh?

Answer 1

It's just a way to say it's a town on the coast, and may not have anything to do with official Scottish designation.

The words burgh and borough and the suffix forms found in names like Pittsburgh and Scarborough come from an ancient Indo-European root. They related to the "pur" in the name of the Malaysian capital, Kuala Lumpur, as well as the "pore" in Singapore. In each case, the suffix essentially means town, though Kuala Lumpur, Singapore, and Pittsburgh have grown considerably since they were first named!

Answer 2

hope this helps .....http://en.wikipedia.org/wiki/Burgh