Melissa Reid, of Lenzie, East Dunbartonshire, and Michaella McCollum Connolly, from Northern Ireland, were sent yesterday to the Fatima de Virgen prison. It is two hours from the capital Lima where they have been since being charged with drug smuggling.
The 20-year-old women were taken from the Palacio de la Justicia in the capital, where they had spent the night in difficult conditions in the cells, after learning their fate.
The prison is said to compare unfavourably with other modern prisons in the country. It is reportedly overcrowded and has around 750 female inmates, including 107 foreigners, many of whom are still awaiting trial.
According to one woman who was detained in the jail, bullying is a daily occurrence and some inmates resort to prostitution when they cannot afford to buy food.
Before being led away the pair had written a list of items they wanted Melissa's father Billy to buy, including strawberry jam, hair removal cream and a pack of cards. But before he could hand over the goods, officials led the women away to begin their stay in prison.
The Peruvian legal system is badly congested and it could be months, if not years, before their case is heard. If convicted, both could face up to 15 years in jail, although any time served will count towards their sentence.
Michaella's lawyer Peter Madden said that both young women have already been subjected to inhumane treatment . He said: "The girls are being kept in poor and dirty conditions so as to break their spirits so they would plead guilty."