The word Sinulog comes from the Cebuano adverb sulog which is "like water current movement," which describes the forward-backward movement of the Sinulog dance. The dance consists of two steps forward and one step backward, done to the sound of drums. The dance is categorized into Sinulog-base, Free-Interpretation. Candle vendors at the Basilica continue to perform the traditional version of the dance when lighting a candle for the customer, usually accompanied by songs in the native language.

The Sinulog dance steps were believed to originate from Rajah Humabon's adviser, Baladhay. It was during Humabon's grief when Baladhay was driven sick. He then ordered his native tribe to bring Baladhay into a chapel where the Santo Niño was enthroned. Moments later, surprisingly, Baldhay was heard shouting, and was found dancing with outmost alertness. Baladhay was questioned as to whether why was he awake, and was shouting. Baladhay explained that he found a small child, pointing to the image of the Santo Niño, on top of him, and trying to wake him up. He, at great astonishment, scared the child away by shouting but couldn't explain why he was dancing the movements of the river. Up to this day, the two-steps forward, and the one-step backward movement dance is still used by the Santo Niño devotees believing that it was the Santo Niño's choice to have Baladhay dance what the holy child wants them to dance.