Crew members of Peruvian naval training vessel The Union are going out on a limb to get their sea legs.

The vessel and its crew of about 250, including officers and naval cadets, arrived in Havana's harbour on Tuesday for a two-day Cuba visit.

The 113m-long, 13m-wide barque, a steel-hulled and full-rigged sailing vessel with four masts, is the largest naval training ship in Latin America.

It contains an auditorium, library, IT platform and classrooms where about 250 cadets attend classes in celestial navigation, meteorology, oceanography, hydrography and naval exercises.

The Union, constructed in 2014, is named after a Peruvian corvette that was used in the first part of the War of the Pacific between Peru and Chile, which lasted from 1879 to 1884.