«What a wonderful, honest, refreshing book, full of free-spirited adventure, humour and profound thoughts to provide inspiration to anyone who simply dreams of getting out and doing their own thing»

Sir Chris Bonington

«Ernest Shackleton listed those qualities an explorer should possess over a century ago: optimism, patience, idealism with imagination, and courage. Vanessa's qualities are truly akin to these»

Alexandra Shackleton

«O'Brien's story is deep in insight and observation. An impressive read»

Peter Hillary, Chairman of the Himalayan Trust

«To The Greatest Heights is a modern-day version of Dick Bass's book, but on steroids. A must read»

Forbes magazine