Book the tour to Machu Picchu in advance.
If you also go up to Huaynapicchu, you will have to do it at least 6 months before, because the demand for the purchase of tickets to the Inca citadel is very high in certain seasons of the year, also if you want to do the traditional and very popular Inca Trail to Machu Picchu in the same way In this way, a reservation must be made in advance with an authorized travel agency since the number of travelers per day is limited. It is recommended to make the reservation with an authorized travel agency since they make all the purchases of permit tickets both for the Inca Trail and for the entrance to Machu Picchu and if you want to Huaynapicchu.
Voltage
Peru handles a voltage of 220 V and a standard frequency of 60Hz. Today most electronic devices handle a range of 100-240V and 50-60 Hz. Check the label on your chargers and electronic devices to make sure they can be used without risk. The plugs are type A, B and C. If you arrive in
Peru from Mexico or the United States, for example, you won't have a problem with it.
Save a copy of important documents in the cloud
A good tip for traveling to Peru regarding your most important documents, such as your passport, is to try to have a saved copy of them in the cloud or in your email. In this way, it is much easier to access them if necessary or if something happens. Always leave the original passport well kept in the hotel, unless you need to take it (to Machu Picchu for example). In the same way, you can make a copy of your passport, laminate it and carry it in your wallet.
Never drink tap water
Tap or tap water in Peru is not drinkable, so always buy bottled water in a super market or store. Unless you boil the tap for several minutes.
If you want to buy handicrafts, ask in several places.
Peru is a country where you will come across a huge offer of beautiful handicrafts, of which you will most likely want to buy several to take with you. It is recommended that before buying, ask prices in several places. Generally, in areas like Cusco, handicrafts can be cheaper (also because many people sell them directly without intermediaries or without paying local rent). A special piece of advice that I can give you is that everywhere in Peru you will see sweaters (mostly) that you swear are alpaca. They are usually very colorful and beautiful, you will see many people with one. The problem is that they are not made of alpaca, the vast majority are synthetic. If you want to buy one, perfect, but it is important that you know about it. If you really want an alpaca sweater, they are much more expensive than what they will sell you, depending on the quality and model.
Try not to take photos with animals.
In many tourist sites in
Peru you will see many women (mostly) with animals such as llamas, alpacas, etc., who offer tourists to take photos with them for a tip. It is not recommended to do it, the reason is basically that the poor animals are left standing there for many hours, just for the entertainment of the tourist. I understand that it's nice to have a photo like that, but the question is at what cost. So better, preferably only see the animals (hopefully in their natural habitat).
Accommodation
Book the accommodations in advance if you are going to travel in the high season. Not only will you ensure a place to sleep, but you will also save money.