Belize and Honduras
Becky Harris, Viaventure, San Ignacio, Belize
Harris, whose company is based in Belize, will help you unearth these two countries' best-kept secrets (perhaps through a helicopter tour to a deserted island) and, just as important, will keep you away from the areas thick with cruise ship crowds. Her roster of guides includes archaeologists and scientists, with whom you might go on a trip to locate tagged manatees off the coast in Belize, or, in Honduras, to the famous Mayan archaeological site Copan Ruinas (502-7832-2509; becky.harris@viaventure.com).

Bermuda
Vicky McGlynn, Travelong, Summit, New Jersey
So passionate is McGlynn about Bermuda—which she's been visiting at least twice a year for the past 40 years—that, as she says, she even has "family buried there." She maintains relationships with the owners and general managers of the island's noteworthy hotels, and, while she likes to plan the sort of dreamy romantic getaways that the island inspires (complete with surprise birthday dockside dinners or visits to local artists' studios), she can also arrange more adventure-oriented flings (908-277-2700, ext. 11; vickym@travelongsummit.com).

Brazil
Jill Siegel, South American Escapes, Montclair, New Jersey
Although she loves Rio—she lived there as a tour manager for six years and has figured out all its best (and worst) hotel rooms (it helps when you speak the language fluently and send 500 travelers to Brazil annually)—Siegel really loves directing her clients beyond Ipanema to places like Salvador da Ba-hia, the center of Afro-Brazilian culture, or the Pantanal, home to the Western Hemisphere's largest wildlife preserve (888-462-7428; jill@southamericanescapes.com).

Brazil and Ecuador
Emmanuel Burgio, Blue Parallel, Potomac, Maryland
Brazil and Ecuador have jungles, beaches, and mountains, but seeing them all requires serious strategizing. Burgio is a master at routing complicated trips in South America, especially if your time frame is constrained, and at planning thrilling excursions that highlight the best of the landscape, whether by helicopter or by speedboat. Many of his clients come from his past life as an investment banker and are willing to pay top dollar for his white-glove touches (800-256-5307; info@blueparallel.com).

Canada
Mary Pyle Peters, Distinctive Journeys, Blairsden, California
This former cultural anthropologist and Native American ethnographer explores a new corner of Canada annually. She knows how to make the most of your dollar and time, whether your interest is antiquing in Quebec City, delving into the flora and fauna of the Maritimes, or even camping out with one of the First Nations tribes (530-836-0684; marytraveler@hotmail.com).