It depends on what you mean by "advanced." They had writing and historical records that lasted for centuries. They had a culture with ancient predecessors that continues to this day. They built many cities that linked trade routes across the Yucatan peninsula, a crucial link in trade that went from the Incas in Peru to the tribes of New Mexico, with everything from chocolate to turquoise being shared along the way.
But they did almost all of this with slave labor. Their boats could not sail on the open ocean. (That's why the inland trade routes.) And they had frequent devastating wars.