Hi Nomi, Laura hasn’t returned to the forum since July last year, so she may not see your post. I doubt that you will be able to get a credencial (pilgrim passport) in Moreira.
If you want to start walking north as soon as you leave the airport, then you could get the Metro at the airport to Vilar do Pinheiro (the next stop after Pedra Rubras) and pick up the waymarked route in Mosteiro. (Detailed instructions in the
Brierley guide – let me know if you’d like them.)
You could get your stamps on bits of paper to begin with if you have no credencial. Then when you get to an albergue that sells credentials, you can stick your stamps in it. The important thing is to have the credencial before you leave Tui, so any stamps in it after the 100km mark qualify for the compostela.
However, if you have the time, it would be much better to go from the airport into Porto and spend one night there. You can get your credencial at the cathedral and experience this wonderful city. You can still get the Metro out of the city again the next day if you’d rather not walk, or to make up some time.
Bom caminho!
Jill