Machu Picchu on 1 April 2010. In July 2011, the Dirección Regional de Cultura Cusco (DRC) introduced new entrance rules to the citadel of Machu Picchu. The tougher entrance rules attempted to reduce the effect of tourism. The entrance was limited to 2,500 visitors per day, and the entrance to Huayna Picchu (within the citadel) was further restricted to 400 visitors per day. In May 2012, a team of UNESCO conservation experts called upon Peruvian authorities to take "emergency measures" to further stabilize the site's buffer zone and protect it from damage, particularly in the nearby town of Aguas Calientes, which had
Secret of the Incas return and uses it to fly to Machu Picchu. There he discovers an archaeological expedition headed by Dr Stanley Moorehead (Robert Young) is preparing to enter the tomb where the Sunburst is said to be located. Moorehead becomes infatuated with Elena, while Morgan arrives and coerces Harry into helping him find the treasure. While Morgan is asleep, Harry slips away and enters the tomb, locating the Sunburst hidden inside a hollow pillar. Morgan then appears and grabs the Sunburst at gunpoint before shooting his way out of the temple while being pursued by Harry and a group of locals. Trapping