It is the first time American president to visit the island in almost 90 years
Cuba is preparing to welcome Barack Obama to Havana, the first such visit by a sitting U.S. president since 1928.
Security has been beefed up on the island ahead of the two day tour.
Obama will told talks with President Raul Castro, enjoy a state dinner and speak with entrepreneurs and tourists.
It's been organized just over a year after diplomatic relations between America and Cuba were restored. But Republican congressional leaders have voiced opposition to the trip - especially with the Castro family still in power.