Hadleigh has worked for Quark Expeditions since 2008 and has filled the roles of Expedition Leader, Expedition Coordinator, Guide and Historian. He has also managed expedition operations from Quark's headquarters in North America. He grew up in England, but has recently lived in Canada and the United States.
Hadleigh has traveled extensively, most notably in the Arctic and Antarctic, and has completed over 50 expeditions to the Polar Regions. Including 3 traverses of the Northwest Passage, plus expeditions to East and West Greenland, Baffin Island, Svalbard, the Falkland Islands (Islas Malvinas) and, islands of the Scotia Sea and Antarctica. A certified NAUI Divemaster, he likes to dive and explore the underwater world when he gets time off. He also enjoys the heights of alpine mountaineering.
Aside from history, Hadleigh has a strong interest in sea ice and icebergs and their effect on local ecology. This interest likely stems from his degree in biological sciences.