???? ???? ????? ?? ?? ????? thrilling ???????? ????? ?????? ????? ???????? ?? ???? ?????? ?????? ???. ?? ??????? ?? ??????? safe ? ??????? ????? learners ????????? ????? ????????? climbing ?? ?? ????? ??? ??????. ??? ?????? ???? ???? ?????? ????? ?? ???? technique ????????? ????? ? ??? ??????? ??? ?