Chamonix 2008 - Glacier du Geant Aiguille Verte 4122 m - Whymper couloir 4050 m (3. 5. 2008) ski degree: TD+/S6 (45-55°) vertical distance in descent 1400 m to Couvercle hut, narrow couloir itself 550 m. Team: Pavel Pospíšil, Marek Holubec, Roman Greguš and Iva Filová