Pokemon Platinum tracker does not have the location Sendoff Spring that the player is moved to after the Giratina fight.
It has pokemon avaliable for capture.
Bulbapedia link: https://bulbapedia.bulbagarden.net/wiki/Sendoff_Spring
Screenshot with location manually added:
Pokemon Platinum tracker does not have the location Sendoff Spring that the player is moved to after the Giratina fight. It has pokemon avaliable for capture. Bulbapedia link: https://bulbapedia.bulbagarden.net/wiki/Sendoff_Spring Screenshot with location manually added: