Pen-y-Gwryd expeditions took place, at Helyg near Capel Curig. On the right at the hotel entrance there is a Tyrolean-style Stüberl (dining room) with the signatures, written on the ceiling, of the teams that did the first ascent of Everest in 1953 and of the first ascent of Kangchenjunga in 1955 – these include Sir Edmund Hillary, Tenzing Norgay, Sir John Hunt, Charles Evans, George Band, Joe Brown, John Angelo Jackson, Wilfred Noyce, Tony Streather, Tom Mackinnon, Norman Hardie, Neil Mather, John Clegg and others, including Noel Odell from Mallory's 1924 expedition and Chris Bonington of later successes. There are many
Bottled oxygen (climbing) Bottled oxygen (climbing) Bottled oxygen is oxygen in bottles, a terminology especially for high-altitude climbing. Bottled oxygen may also be for a breathing gas, especially for scuba or surgeries. (see also Diving cylinder and Oxygen tank) When Tenzing Norgay and Edmund Hillary made the first successful summit of Mount Everest in 1953 they used bottled oxygen. It was noted for its ability to increase the user's appreciation of the surroundings. Running out of bottled oxygen was noted as a factor in the 1979 deaths of Ray Genet and Hannelore Schmatz on Mount Everest. By the 21st century one of the