You can stay a maximum of 90 days as a tourist in the country, and you must re-enter to renew your visa (for Argentines).
It all depends on which trip each one makes.
* ACCOMMODATION: A dorm bed is between S/25 and 30 cheap hostels, reaching S/35 or 65 (generally full of Europeans and Americans). Campings from S/20.
* FOOD: Ceviche, Lima cause or potatoes to the entrance huancaína. They say that food is one of the best foods for the soul. Peru is a country that can prove this. Sweets like the sigh Lima (own of the capital) and 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 on.
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.
The beauty of Peru is that it has everything: jungle, Sierra, and 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 of pre-Hispanic cultures).