President Obama, you are the first U.S. President who comes to Colombia and stays three days, two nights in this beautiful city of Cartagena.

WHITEHOUSE: President Obama and President Santos Hold a Press Conference | The White House

These two models - one with the week of nights compared to two and three days stints - are commonly used by employers that operate shift or night work.

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Our planned route took us, over two nights and three days, from the rustic Wild River Campground, along Meader Ridge, over the rock-strewn Carter Dome and along winding trails skirting Moriah Brook and Wild River back to our starting point.

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