When entering the country, you get a maximum of 90 days as a tourist, and to renew it (for Argentines), you have to go out and re-enter.
It all depends on which trip each one makes.
* ACCOMMODATION: a bed in a hostel dorm is between S / 10 and 15 cheap hostels, reaching S / 25 or 35 (in general, full of Europeans and Americans). Campings from S / 10.
* FOOD: Ceviche, Lima cause or potatoes to the entrance huancaína. They say that food is one of the best foods for the soul. And Peru, a country to prove it. Sweets like the sigh Lima (own of the capital), the cremolada (very common to the north, in many fruit flavors).
The markets are an inexhaustible source of vegetables and fruits, great to stock up.
What told us that the most dangerous cities are those on the coast for the year’s holidays (who said that many people from the north would steal), Trujillo, and Piura. And for women, Peru is super cute to travel to, and they will not feel harassed or anything like that.
The beauty of Peru is that it has everything: jungle, Sierra, coast. There are trekking tours (Sacred Valley, Arequipa, and Callejón de Huaylas are ideal) and visiting museums and ruins (Peru is an open-air museum pre-Hispanic cultures).