According to the Management Plan of Măcin Mountains National Park (see page 76 at https://parcmacin.ro/wp-content/uploads/2022/08/Capitolul-2-Descriere.pdf), climbing in the Full protection zones and Strict protection zones (ZPI / ZPS) is prohibited, because ”ecological climbing” could not be guaranteed for all climbers. A sign indicating this is placed on information boards at the start of trekking routes.
The strict protection zone includes Valea Racovei, with the Tutuiatu quarries being outside the park and therefore climbable all season.