In the Dutch tradition, Sinterklaas arrives in the Netherlands from Spain.
Sinterklaas is based on Saint Nicholas, a Christian bishop associated with Myra in present-day Turkey. Dutch folklore, however, places the legendary gift-bringer in Spain before his annual arrival by steamboat. The arrival traditionally takes place in mid-November, often on the first Saturday after 11 November, and is followed by a public parade.
The Spanish connection has several proposed explanations. Saint Nicholas’s relics were transferred to Bari in 1087, and Bari later belonged to the Spanish Kingdom of Naples. Another theory links Spain with oranges and pomegranates, traditional gifts associated with the saint and with Spanish trade. The 19th-century children’s book Sint-Nicolaas en zijn knecht helped popularize the steamboat voyage from Spain.
A common mix-up is answering Turkey because Saint Nicholas was from Myra, or answering Italy because his relics are kept in Bari. Those are historical associations; Spain is the canonical destination in the Dutch Sinterklaas story.