May

    13

  • nationalgeographicmagazine: Ora Cave, Papua New Guinea Photograph by Stephen Alvarez, National GeographicThe crash of rapids surrounds expedition leader David Gill, left, and Herb Laeger near the entrance of Ora Cave. Hot acidic waters welling up from deep underground, combined with drainage from heavy rains, have carved a maze of tunnels and chambers through New Britain’s young limestone. Download Wallpaper (1600 x 1200 pixels)

    nationalgeographicmagazine:

    Ora Cave, Papua New Guinea
    Photograph by Stephen Alvarez, National Geographic
    The crash of rapids surrounds expedition leader David Gill, left, and Herb Laeger near the entrance of Ora Cave. Hot acidic waters welling up from deep underground, combined with drainage from heavy rains, have carved a maze of tunnels and chambers through New Britain’s young limestone.

    Download Wallpaper (1600 x 1200 pixels)

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