From the crystalline waters of Crater Lake to the deep, dark recesses of Carlsbad Caverns, discover stunning highlights from this epic 13-month journey https://on.natgeo.com/2IiV4ko

From the crystalline waters of Crater Lake to the deep, dark recesses of Carlsbad Caverns, discover stunning highlights from this epic 13-month journey https://on.natgeo.com/2IiV4ko 

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