Question: Christopher Columbus' first voyage on October 12, 1492 actually landed him on which island in the Bahamas?

Context paragraphs:
History of the Catholic Church in Cuba: Christopher Columbus, on his first Spanish-sponsored voyage to the Americas in 1492, sailed south from what is now the Bahamas to explore the northeast coast of Cuba and the northern coast of Hispaniola.  Columbus, who was searching for a route to India, believed the island to be a peninsula of the Asian mainland.  The first sighting of a Spanish ship approaching the island was on 28 October 1492, probably at Bariay, Holguín Province, on the eastern point of the island.

Cruz de la Parra: La Cruz de la Parra (English: The Cross of Vinewood), or The Sacred Cross of Parra, as it is referred to in English, is a wooden cross which was erected by Christopher Columbus in Cuba after he had landed there during his First Voyage in 1492.  It is considered the oldest artifact connected with Columbus to be found in the Americas.

Guanahani: Guanahani is an island in the Bahamas that was the first land in the New World sighted and visited by Christopher Columbus' first voyage, on October 12, 1492.  It is not known precisely which island it was, and several theories have been put forth by historians.  "Guanahani" is the native Taíno name; Columbus called it San Salvador.

1492 light sighting: The 1492 light sighting was a sighting of unknown light during the first voyage of Christopher Columbus on October 11, 1492, by some crew members of "Santa Maria", "Pinta" and possibly "Niña" shortly before the landing on Guanahani.  The light was reported in Columbus' journal, Ferdinand Columbus' "Vita del Ammiraglio" ("The Life of the Admiral"), the proceedings of the "Pleitos colombinos" (the long lawsuit involving the heirs of Columbus) and some other sources.

Columbian Festivals: The Columbian Festivals (Spanish: "Fiestas Colombinas" , popularly just "Las Colombinas") are a set of annual celebrations in the city of Huelva, Andalusia to commemorate the first voyage of Christopher Columbus.  They occur for a week at the end of July and beginning of August, the main day being 3 August, the date in 1492 on which Columbus departed Palos de la Frontera, on the voyage that brought him to the Americas.  The festivities have been declared to be of National Tourist Interest ("de Interés Turístico Nacional").

Columbus's letter on the first voyage: Columbus's letter on the first voyage is the first known document announcing the results of the first voyage of Christopher Columbus that set out in 1492 and reached the Americas.  The letter was ostensibly written by Columbus himself, on February 15, 1493, aboard the caravel "Niña", while still at sea, on the return leg of his voyage.  A post-script was added upon his arrival in Lisbon on March 4, 1493, and it was probably from there that Columbus dispatched two copies of his letter to the Spanish court.

Voyages of Christopher Columbus: In 1492, a Spanish-based transatlantic maritime expedition led by Christopher Columbus encountered the Americas, a continent which was previously unknown in Europe, leading to the colonization of the Americas.

Fontanilla: The Fontanilla is the former public fountain of Palos de la Frontera in Spain where, according to tradition, these fountains provided the water for the ships of Cristopher Columbus's first voyage—the "Santa María", the "Niña", and the "Pinta"—when, on 3 August 1492, they departed from Palos de la Frontera, captained by Columbus and by Palos's own Pinzón Brothers.  That voyage is widely considered to constitute the discovery of the Americas by Europeans.  La Fontanilla is the least dramatic, but perhaps the most original and authentic monument among the so-called "Lugares colombinos", the places in Huelva closely associated with Columbus's first voyage.

Christopher Columbus's journal: Christopher Columbus's journal is a diary and logbook written by Christopher Columbus about his first voyage.  The journal covers events from 3 August 1492, when Columbus departed from Palos de la Frontera, to 6 November of the same year.  Columbus is known by several contemporary references to have kept a journal of the voyage as a daily record of events and as an evidence for the Catholic Monarchs.  Upon his return to Spain in the spring of 1493 Columbus presented the journal to Isabella I of Castile.  She had it copied, retained the original, and gave the copy to Columbus before his second voyage.  The whereabouts of the original Spanish text has not been known since 1504.  Copies based on an abstract from the journal have been made, most notably by Bartolomé de las Casas.

Spanish immigration to Cuba: Spanish immigration to Cuba began in 1492, when Christopher Columbus first landed on the island, and continues to the present day.  The first sighting of a Spanish boat approaching the island was on 27 or 28 October 1492, probably at Bariay on the eastern point of the island.  Columbus, on his first voyage to the Americas, sailed south from what is now The Bahamas to explore the northeast coast of Cuba and the northern coast of Hispaniola.  Columbus discovered the island believing it to be a peninsula of the Asian mainland.

Supporting paragraphs: Guanahani Voyages of Christopher Columbus
Answer: Guanahani