Deep in the Ecuadorian Andes, Carlos Sánchez monitors one of the world’s most active volcanoes from a tiny treehouse, while thrill-seekers soar over the abyss below.
Every morning before the sun rises, 75-year-old Carlos Sánchez says a prayer in his one-room hut, grabs a pair of binoculars and slowly climbs up into a lonely treehouse that leans precariously over the
