Ak-Su Valley, Various Ascents. It was reported that in September, 1995, the French team of P. Caribo, J.P. Calvet and A. Robert spent three weeks in the Ak-Su Valley, repeating Perestroika Crack on Slessova Peak after two days of preparation. The team also managed an eight-pitch variation to the right of Sugar Daddy on Peak 1000 years of Russian Christianity (4520 m). (GHM 1995-1996)