What were columbus' beliefs about where he was, when in truth he was in the bahamas?

After navigating the Atlantic Ocean, Italian explorer Christopher Columbus sighted Guanahani Island, now Bahamas, on October 12, 1492. Believing that he had reached East Asia, the expedition claimed the land for Isabel and Fernando, the Catholic queen and king of Spain, who sponsored the attempt to find an oceanic route to China and India and the fanciful islands of gold and spice in Asia.

answer: 25.8 years old or 25 years old