Eau et gaz à toutes les étages
A spectacular, demanding and, as the name suggests, extremely airy route. Not to be underestimated at any costs: retreat is a difficult proposition, and almost impossible above the great roof. Psychologically more demanding than Voyage or Elixir, but highly rewarding. After the pitch shared with Bonatti-Ghigo (40m wall), don't climb north up the exit for “Directe des Capucins”, as the cracks are almost always filled with snow and ice and therefore unprotectable and runout. Instead, continue to the obvious roof with in-situ pegs. Friends are used on many belays, a hammer isn't necessary. A pendulum is carried out beneath the large roofs!
From Rifugio Torino (3375m) traverse west towards Col des Flambeaux. From here continue beneath the cable car and left to then continue at altitude towards the inconfoundable Grand Capucin. Start directly beneath the enormous grey corner, capped by a large roof.
Abseil down using the belays on Voyage + Elisir (final three abseils).
Full rack of friends, at least two n.5.