The Forum - Cave scientist Penny Boston: Why I hugged a hot mega-crystal. Photo by M. Spilde - 大象传媒 Sounds
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The Forum - Cave scientist Penny Boston: Why I hugged a hot mega-crystal. Photo by M. Spilde - 大象传媒 Sounds
Cave scientist Penny Boston: Why I hugged a hot mega-crystal. Photo by M. Spilde
Penny describes her emotional reaction to having to leave the Naica cave system in Mexico.