1. San Andrés Archaeological Park, located in El Salvador, is an ancient Mayan ceremonial site that dates back to the Preclassic period (600 BCE - 250 CE). It was first inhabited around 900 BCE and was an important political and ceremonial center for the Mayans.

The site encompasses around 8 square kilometers and includes various structures such as temples, palaces, ball courts, and residential areas. One of the most impressive structures is the Acropolis, which was once the residence of the ruling elite. The Acropolis has a central plaza surrounded by temples and altars, reflecting the religious and political significance of the site.

Excavations at San Andrés have revealed ancient artifacts, including ceramics, stone tools, and sculptures, providing valuable insights into the Mayan civilization. The site also features a museum where visitors can learn more about the history and culture of the Mayans.

2. The working hours of San Andrés Archaeological Park are from Tuesday to Sunday, from 9:00 AM to 4:00 PM. Unfortunately, I couldn’t find a specific phone number for the park, but you may be able to find more information by contacting the Salvadoran Institute of Tourism (ISTU) or the Ministry of Culture of El Salvador.

3. Ticket information and transportation options may vary, so it’s best to check with the Salvadoran Institute of Tourism or the Ministry of Culture for the most up-to-date information. Transportation to the site can typically be arranged through local tour operators or by hiring a private taxi. It is located approximately 40 kilometers northeast of San Salvador, the capital city of El Salvador.