The Buenos Lagos Megalopolis is a concept of a large megalopolis in the State of Bloxburg Valley that stretches from the city of Sacramento to the city of San Juan. It is also called SaSan. It is believed that this concept will become a reality by 2100 when the population of the cities of Bloxburg City, Sacramento, San Juan, Fort Sapphire, Paradise and more grow beyond their present-day city limits. The population would be about 79 million Robloxians, which would make it the second most populous metropolitan area in Robloxia and the third in the world.