- 22 36. The main concern of the CPT delegation was that the facilities for irregular foreigners were not suitable for stays longer than a few days. The design of the Petro Rali Special Holding Facilities was extremely poor, with rows of cells giving on to a narrow corridor, reminiscent of a gigantic police station rather than a centre meeting the needs for the administrative detention of aliens. This particular layout, combined with a total lack of communal spaces for recreational purposes and the difficulties of access to the exercise yards, leads to the inevitable conclusion that detained persons will remain in their cells for most of the day. In addition, there were no in-cell sanitary facilities or call bells. Further, the visiting facilities were of a closed nature, preventing any physical contact, and the pierced metal dividing screen was so dense that it would be difficult to properly see any visitor. The CPT considers the Petro Rali facility as a missed opportunity for the Greek authorities to construct an appropriately designed centre for the administrative detention of aliens. The Committee reiterates that for such a centre care should be taken in the design and layout of the premises to avoid as far as possible any impression of a carceral environment. As regards regime activities, they should include outdoor exercise, access to a day room and to radio/television and newspapers/magazines, as well as other appropriate means of recreation (e.g. board games, table tennis). In its current layout and design, Petro Rali is not suitable for holding persons longer than a few days; if persons are to be held any longer, a wholesale redesign of the facility is required. The CPT recommends that the Greek authorities take the necessary steps in light of the above remarks.