Fiction

Viking Series

• Odinn's Child (2005)
• Sworn Brother (2005)
• King's Man (2005)

The Adventures of Hector Lynch

• Corsair (2007)
• Buccaneer (2008)
• Sea Robber (2009)

Non fiction

• Tracking Marco Polo (1964) - Motorcycle ride from Venice to Central Asia along the Silk Road
• Explorers of the Mississippi (1968)
• The Golden Antilles (1970)
• The African Adventure (1973)
• Vanishing Primitive Man (1973)
• Explorers of the East (1976) - A history of European explorers in Asia
• The Brendan Voyage (1978) - Sailing a leather currach from Ireland to Newfoundland
• The Sinbad Voyage (1983) - Sailing an Arab dhow from Muscat, Oman to China
• The Quest for the Golden Fleece (1986) - Sailing from Greece to Georgia
• The Ulysses Voyage (1987) - Sailing from Troy to Ithaca
• Crusader (1989) - Riding a heavy horse from France to the Middle East
• In Search of Genghis Khan (1991) - See Genghis Khan
• The China Voyage (1994) - Across the Pacific Ocean (almost) on a bamboo raft named Hsu-Fu
• The Spice Islands Voyage (1997) - See Alfred Russel Wallace, a voyage through the Indonesian archipelago
• In Search of Moby-Dick (1999) - See Herman Melville
• Seeking Robinson Crusoe (aka In Search of Robinson Crusoe ) (2002) - See Robinson Crusoe

• Gold Medal of the Royal Geographical Society
• Livingstone Medal of the Royal Scottish Geographical Society
• Honorary Doctor of Letters, Trinity College, Dublin
• Honorary Doctor of Letters, University College, Cork
• Gold Medal of the Maritime Institute of Ireland