When talking to the guy next to the ship when you have the Liberty Pass, he will ask if you want to head aboard. At the Liberty Garden, there will be a few Team Plasma members with about level 18 Pokémon. In the basement of the lighthouse, there will be Victini waiting there. The Liberty Pass was only available for download before April 10, 2011. It is not known if there will be any other events at Liberty Garden.