The foot hills of the Sierra Madre mountains with the Pacific Ocean on the horizon. The Bays and beaches of Huatulco. The Bays and beaches of Huatulco. The Bays and beaches of Huatulco. The Bays and beaches of Huatulco. An example of the moutain roads in the Sierra Madre mountains. The Sierra Madre mountains. Sunset at 35,000 feet.