The Monteverde cloud forest reserve in Costa Rica was established in the 1970s with the help of a group of American Quakers. The aim was to protect its unique habitat and abundant exotic wildlife. It has become one of Central America's top tourist attractions. Mike Lanchin has been hearing from 97-year-old Marvin Rockwell and 88-year-old Lucky Guindon, two of the Quakers who left the US to settle in the mountains of Costa Rica.

(Photo by: Education Images/Universal Images Group via Getty Images)