Overseas Adventure Travel

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347 Congress St
Boston, MA 02210
Established in 1978, Overseas Adventure Travel (O.A.T.) is part of Boston-based Grand Circle Corporation's family of travel companies, which also include Grand Circle Cruise Line and Grand Circle Travel. In 1992, owners Alan and Harriet Lewis established the nonprofit Grand Circle Foundation to support communities in which Grand Circle works and travels, including some 300 humanitarian, cultural, and educational endeavors worldwide—among them, 100 schools, in 50 countries. The Foundation is an entity of the Lewis Family Foundation, which has pledged or donated more than $200 million since 1981.

Reviews

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3.5783 reviews
Photo of Odete B.
Odete B.
10/27/2025

the main cruise was phenomenal as far as itinerary and pacing but the post trip was overwhelming the same exposure to old monuments pre historic ruins and no interaction with locals in Malta an...

Abbey P.
11/11/2025

I returned from Morocco last week. This was my 4th OAT trip (Peru, Japan, China--all also fabulous!). Our lead Morocco guide was Aziz, who was fabulous in every way. He was always enthusiastic,...

Deborah M.
11/4/2025

Erkut, our TL was the most amazing and knowledgeable leader. So caring and efficient and as always, has been the case of TL, the best you could expect.

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Elva A.
11/11/2025

when I decided to tour with OAT for the first time, it was due to a free single supplement offer. As I progressed to follow requirements for Visas to three of the four countries, and saw the fee...

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Dee Dee P.
11/2/2025

Oh my goodness - can't believe how excellent this trip was! I started with pre-trip in Rwanda, and it was amazing! It was so educational to learn about Rwanda's political environment and the...

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