What is the purpose of the trip

Ernesto “Che” Guevara, a twenty-three-year-old Argentinian medical student, decides to take a break from his studies and travel around Latin America up to North America on his motorcycle “La Poderosa” (The Mighty One) with biochemist and friend Alberto Granado. Guevara and Alberto take off on this trip in a moment of spontaneity, and that spirit of adventure.