Katie and Tom at the Inca site of Runkuracay on day three.

The Incas constructed a trail and cleared the mountain of the all the thick forestation (like that you can see here) then built a city. That's just crazy.

Condor Travel Porters prepare our gear for the trek

You have a climb right after the bridge at the start then it's a lot of this. Lulls you into a false sense of "I can do it"ness.

But before we get anywhere near the campsite there is time for more steps and more breathtaking scenery. Again, Intipata is visible in the background.

Those blue and green tents there? That's where we were to had lunch on the second day (at 3600m). That thin trail behind it that steeply goes back to the mountain top? That was was why none of us looked forward to the afternoon.

The porters walk the trail, carrying a ton of stuff, with simple sandals on their feet.