Some extra helpful tips:
- Bring a jacket as rainfall comes all year-round especially on the Sacred Valley.
- Wear hiking shoes with good ankle support. Also bring extra socks. Your feet will get wet often.
- Altitude sickness is common as you go up the mountains, locals will suggest taking Coca leaves to alleviate the dizziness (nasty taste, but hey, it works)
- Learning some Spanish language skills before you go is a great way to interact with the locals and other visitors on the trip as some do not speak English at all and you will most likely experience more than the usual tourist treatment from the community, such as trying the real local delicacy or even get lower prices for beer and lodging and souvenirs.
- Don’t forget to have your passport stamped at the entrance. This is one of the very few places in the world that permits an official document to be branded with an archaeological site imprint.