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Patrick talks about his journey from sizeable small islands to ever tinier islets in search of the special quality of island life. Do small islands have big lessons for us on the mainland?

Jenny discovered the remarkable illustrated journals of Thomas Machell in the British Library. She will interweave their adventures as she seeks this forgotten explorer in India's Raj, the South China Sea, Polynesia and Arabia.

One of the world’s leading high-altitude climbers shares his personal stories of a lifetime of mountaineering, including the Himalayan Triple Crown in 2013, and what drives him to do it.

In 2014, Canadian underwater archaeologists located the remains of HMS Erebus, Sir John Franklin’s vessel on his ill-fated 1845 expedition. Ryan Harris will present the discovery and investigation of this compelling shipwreck.