The secret garden.. To access this you must complete the Sinnoh Pokedex by seeing all Sinnoh Region's Pokemon.. Then if you want to catch Shaymin you must have the event key item Oak's Letter...
he is in victory road.
Victory Road
Go to the new path a victory road
same as diamond/pearl
http://www.psypokes.com/platinum/walkthrough.php?part=10
he is in victory road.
Victory road =]
Victory Road
In victory road
You catch one on Victory Road.
in victory road
you catch in the victory road
victory road
On Victory Road's first floor
same as diamond/pearl
A Veteran is Victory Road
Go to the new path a victory road