Expeditions scale from large cruises to small voyages. Family vacations and solo trips also included. Moreover, expeditions are all about tearing apart all barriers and making new histories for coming time and world.
However, you can say this being limitless.
Worlds Ultimate is bringing very few but incredible expeditions of crazy people to you. Those people changed history by breaking the barrier and limits.
No one from us can even think of all these craziness.