As soon as you have a property, you can start immediately! Build a fast roller coaster or darkride with top theming. Or build a whole park directly! Your creativity knows no limits.
Explore the lands of other players. In the Userpark there are many breathtaking worlds and attractions. You should definitely take a look around.
It is also worth exploring the entrance and the surroundings in front of the Userpark. Who knows what else is hiding there?