The Overseas Adventure Travel (O.A.T.) is a private Travel and tourism company owned by Alan and Harriet Lewis.
Overseas Adventure Travel (O.A.T.) Private Overseas Adventure Travel is part of the family of travel companies owned by Boston-based Grand Circle Corporation, offering group Adventure travel to Africa, the Arctic Asia, Central and South America, Europe, Australia and New Zealand. Alan and Harriet Lewis,
owners Travel and tourism 
Private was acquired by the Grand Circle Corporation, owned by Alan and Harriet Lewis. In 1993, O.A.T. Overseas Adventure Travel is part of the family of travel companies owned by Boston-based Grand Circle Corporation, offering group Adventure travel to Africa, the Arctic Asia, Central and South America, Europe, Australia and New Zealand. Overseas Adventure Travel (O.A.T.) Travel and tourism 
