Travel insurance (and some copies).
Sleeping bag (or you can rent one from us).
Backpack to carry your things.
Phone and Camera charger and adapter.
Torch or headlamps.
Deet or mosquito repellent ( recommendable 30% deet).
Hiking poles ( or you can rent one pair from us).
Rain gear (especially if traveling in the wet season, from October to March).
Comfortable hiking clothes, including warm clothes for the nighttime.
Good hiking boots with protector ankle or similar, and one pair of flip-flops or light sandals.
Sunblock and sunglasses.
Hiking long sleeve T-shirts.
Sleeping bag liner.
Water bottle or canteen.
American dollars and Peruvian soles in cash.
Sun hat, cap, and warm hat and gloves for the nighttime.
Toilet paper, and face tissue paper.
Anti-inflammatory tablets (e.g. Ibuprofen). Personal first-aid kit (should contain lip salve, Aspirin, Band Aids, anti-histamine, Imodium or similar tablets for mild cases of diarrhoea, re-hydration powder, extra prescription drugs you may