Grimper à Skály u Drnovce (Dutý kámen)

- It is forbidden to damage or modify the surface of the rocks, e.g. by improper handling of ropes, using unsuitable footwear. - Belaying only with fixed belays and removable belay devices that do not damage the rock. - It is forbidden to use magnesium and other substances that increase friction. - Climbing only on dry rocks, in daylight. - New routes only with the consent of the nature conservation authority. - Careful behavior towards nature, it is forbidden to damage the rocks and the surrounding area. - In the event of nesting, it is necessary to interrupt the ascent and report the nesting to the Regional Authority of the Liberec Region.

Nature Conservation: Seasonal climbing ban from November 1st to June 30th, some towers permanently banned, Borová věž without restrictions. Nature Conservation Document: PP Dutý kámen - OOP 2021-2030, OP authority KÚ Liberec Region (Liberec Region Authority)

Sur le grès, les règles de la ČHS pour le grès s'appliquent – pas de magnésie, pas de protections métalliques, rocher sec uniquement. Sur les autres roches, ce sont les règles de la ČHS pour les sites rocheux tchèques.

Much of the area lies in the Lusatian Mountains PLA. Check the ČHS crag database for any closures before you go.