Douglas Comer
Douglas Comer is a renowned archaeologist and expert in the preservation of archaeological sites. He has conducted significant research on the impact of tourism on heritage sites, including Machu Picchu, where his studies have helped establish visitor limits to ensure the site's conservation.
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Paraguay:
Douglas Comer conducted a study in 2015 that determined a maximum of 2,500 visitors per day for Machu Picchu.
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