He is either outside the Pal Park or inside the building. You get to the Pal Park by taking the sea route using surf from Sandgem Town
He is in a house at Eterna City.
Go to professor Rowan's place in Sandgem town and talk to him. Then Professor Oak comes and gives you the national pokedex.
well, why don't u ask professor oak yourself instead of checking on the computer!!
Yes. He was the young Prof. Oak when they travelled back in time.
In the wild or from professor oak
Well It's Simple. Professor Oak Doesn't Live Anywhere But The Kanto Region. But You Can Get To Flamora Town By His Invite To Catch Shaymin And After You Complete The Sinnoh Pokedex Go To Professor Rowan's Lab And There You'll Find The Oakster! ABOVE IS ALL WRONG!!!!! After beating leet 4, ur find oak while visting Rowanm then go to pal park ur find him again, after that he will be living permantly in the house lower leftside of eterna city. Thats right
You can get him in Pal Park or you can trade with a friend who has Heart Gold and got Squirtle from Professor Oak.
The Pokeradar is an item that you get in Pokemon Platinum. You get it from Professor Oak after completing the Shinoh Pokedex.
Speak with Professor oak he will tell you about them and then they come
After you see EVERY Pokemon in the original Pokedex you go and visit the professor in Sandgem town then professor oak will come and give it to you then you also unlock the pal Park still must migrate Pokemon at the pal park
Bottom-left in eterna
Professor Oak Is The Professor From Kanto(The Original Professor) Who Came To Sinnoh Because He Heard That Articuno,Zapdos,And Moltres Had Come To Sinnoh.
you can only see him when you get the national pokedex, at pal park in pearl and dimond. in platinum you can see him in enterna.
Go to pal park and talk to professor Oak
he doesn't
In Pokemon Platinum to get the National Dex you will need to have seen all 210 Pokemon in the Sinnoh Dex then talk to Professor Rowan and then after a while Professor Oak will give you the National Dex!
get all the Pokemon in your pokedex from sinnoh then talk to professor rowan and oak will give it to ya
Complete the Sinnoh dex then go to professor rowen for it professor oak, he will enter the room and give you it.