In term of bars/cafes you can find 1 places (like "Scotts of Alnmouth").
The major streets are the following: Northumberland Street, Estuary Drive.
In term of post offices you can find 1 location in the region (like "The Village Post Office").
Are you looking for an apartment for sale/rent? Or interested by a house? You can check that on rightmove.
Closest cities