Acapulco Rock Island is right adjacent to Chimney Rock Island at the crescent of Lake Martin. It is a popular hang-out spot for boaters and is named after the shaped resemblance of Acapulco Rock in Mexico. People Climb to various levels of the rock to jump into Lake Martin. The busiest times are during the Memorial Day, Independence Day, and Labor Day holidays. Many people reference "Chimney Rock" when referring to Acapulco Rock therefore creating confusion to some. Technically, Acapulco Rock can become part of Chimney Rock Island when the water drops to a level creating a land bridge between the two islands.