After you obtain the National Pokédex and visited the Pal Park, Professor Oak appears in the southernmost house in Eterna City.
Bottom left.
He is in a house in the southwest corner of the city.
If you have the National Pokedex, Prof. Oak will be in a house in southern Eterna City.
He isn't in Pal Park, he's in Eterna City
ETERNA CITY
Eterna City
in a house
Go to eterna city.At the botttom of the city enter the house to your left and oak will be there.If you have the marking map app for you poketch he will tell you the three bird Pokemon are in sinnoh and you can capture them.
After you obtain the National Pokédex and visited the Pal Park, Professor Oak appears in the southernmost house in Eterna City.
in eterna city
Pewter city.
Bottom left.
Prof. Oak is in a house in Eterana City.
Eterna city, last house on the left to the south of the city
in eterna city the house at the bottom of the city on the west.
He is in a house in the southwest corner of the city.