Lapras Travel Liner
Lapras Travel Liner is your mode of transportation between continents. Lapras will be in Lively Town as soon as you make it there, but you won't be able to utilize her transportation until later on in the story. After living at the Expedidtion Society Headquarters for a while, Archen will ask you if you have been to other continents yet. The next day, he will buy two Lapras Liner Passes for you and your partner and take you to the Air Continent. After the day's expedition is done, you will be able to buy the rest of the Lapras Liner Passes at Kecleon's Shop. After completion of the main story, you can connect with Lapras by talking to her and she will allow you to go to "The Rest of the World", also known as the Sea of Wonders. These places include Fire Island Volcano (where you fought Entei) and The Tree of Life. As you increase in Expedition Rank, more dungeons in the Sea of Wonders will become accessible.