The most important segments of the economy now are tourism and commerce. The city's rich cultural and artistic heritage, along with its colonial area constructions, are what attract visitors. For the rural areas around the city, it is the place to shop for supplies not available at home. This includes foods, auto parts and service, banking services and more. Cerro de la Bufa is very close to the city of Guanajuato and has a number of stories associated with it. At sunset, there is a formation that looks like the profile of the face of a bearded man. According to tradition, this is the face of Christ. There are two caves consecrated to Ignatius of Loyola. They are on opposite sides of the summit and called the “old” and “new” cave. Each July 31, there is a pilgrimage to the “new” cave in honor of the saint. Sometime during the colonial period, an image of Ignatius was painted on a wall. According to legend, a group of male witches used to use the cave for their rites on the eve before the Catholic ritual, “forcing” the image on the wall to observe. Cerro de la Bufa is home to another legend about an enchanted princess. It states that on feast days, a woman would appear to a man on a road in the mountain and ask him to carry her to the Basilica in the city center in his arms. If he did so, the city of Guanajuato would return to the height of its wealth. If he chose to do so, noises and threats from behind would haunt him. If he lost his resolve, the woman would turn into a serpent and kill him. No woman has ever been carried from this mountain to the Basilica. Presa de la Olla is a dam that was constructed in the mid 18th century to supply the city with potable water. The area became a popular gathering place for young aristocrats, and later the lower classes as well. The area hosts the Feast of San Juan every June 24. The origin of this event dates from the colonial period when a poor miner came here to give thanks for the recent arrival of rains. The current event culminates with the “opening of the dam,” which attracts hundreds to watch the water flow. Today, the event stretches over the second and third week in June and has taken on new elements such as a beauty contest and dances with techno, reggaetón, Duranguese and Grupero music.