Inca Trail to Machu Picchu terminus at the Sun Gate on Machu Picchu mountain. The two longer routes require an ascent to beyond above sea level, which can result in altitude sickness. Concern about overuse leading to erosion has led the Peruvian government to place a limit on the number of people who may hike this trail per season, and to sharply limit the companies that can provide guides. As a result, advance booking is mandatory. A maximum of 500 people are allowed on the trail each day, of which only 200 are trekkers, the rest being guides and porters. As a result, the high
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