You'll not find a railway station named Goa! If you are trying to book train ticket to Goa, look for the two main railway stations, Vasco da Gama (IRCTC Code:VSG) and Madgaon (IRCTC Code:MAO).
The full list of Goa's Beaches: North Goa to South Goa.
Candolim beach in north Goa.
Baga Beach is located in North Goa