Though Bivacco Gervasutti seems to rest precariously at 9,300 feet above sea level, the capsule is well-secured—it was designed to prevent snow accumulation, resist avalanches, and withstand high-altitude conditions (and it provides sleeping, dining, and living space for 12). The only trick is getting there: The ascent from Val Ferret Valley to Mont Blac's Frebouze Glacier takes about four hours.