It is a sad fact that Enclosed Orders never let the Nuns out, or allow them to have contact ivith the outside world.

The Catholic Answers

It is not a sad fact. It is a fact that those who enter Enclosed Orders will not go again beyond their convent walls. In what are called the Active Orders not all contact with the outside world is renounced. Where the work of the Nuns involves such contact, it is permitted. But apart from that, the Nuns gladly return to their quiet and spiritual detachment. However, there are some Nuns who have chosen to enter convents where the rule permits them to avoid all further contact with the world. Feeling called by God to such a life, they enter an Enclosed Order. But remember that there are no Nuns who cannot leave their convent whenever they definitely will to return to that life in the world which they voluntarily abandoned.

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty