On 4 February 1902, Robert Falcon Scott’s Discovery Expedition, landed on the Barrier and unloaded an observation balloon which Scott had brought along for the purpose of achieving aerial surveys. Scott himself was first to climb aboard the balloon and it rapidly ascended to a height of 180 m, but thankfully the balloon was firmly tethered. Ernest Shackleton piloted the second ascent, and as with Scott, the only thing observable, even at that height was the seemingly endless expanse of icy whiteness that constituted the Barrier. The expeditions junior doctor and zoologist, Edward Wilson privately thought the flights to be “perfect madness”.