INCA - International Nature & Cultural Adventures
HomeWhat's NewAbout INCAWhy INCA?Our AdventuresPrivate AdventuresVideo GalleryImage Gallery
AlaskaAntarcticaBaja-Sea of CortezGalapagos IslandsPatagoniaPeruTurkeyIntegrityReina Silvia
Bill Roberson savoring a Chilean vintage in the Atacama

About INCA

A bit of history

Our exclusive associates

Adventure with a conscience

The Galapagos Conservancy


Image Gallery

Contact us


Our Philosophy and Style 

Galapagos tortoise. Photo Wes Walker.

We have long been one of the leading companies offering small, intimate adventures because we hold ourselves (and our trips) to especially high standards of quality and safety.

Wherever we travel we are downright fussy about our guides, itineraries, accommodations and transportation in order to give you the best possible experience.

A Bit of History

INCA (formerly Inca Floats, Inc.) began in the 1970's as a family adventure when Bill Roberson, a scientist and professor, and his two daughters, Kim and Marika, traveled to Peru and the Galápagos Islands. They had such an adventurous, silly and educational time that they couldn't wait to share it with their friends. And so a company was born.

In 1996 Inca Floats became INCA, International Nature & Cultural Adventures, to reflect our adventures outside of South America in Turkey, Alaska and Baja. INCA is now more than the Roberson family supplying, guiding, and cooking as on our early treks. We have grown at home and abroad with dedicated, talented staff here in Emeryville and in each of our destinations. Along the way we have continued our devotion to making each trip enriching—as hassle-free and as comfortable as possible for each of our travelers—without sacrificing any of the adventure while doing it.

Our Exclusive Associates

Providing trouble-free, enjoyable adventures requires constant attention to details where it counts—at the trip location. So we carefully select some of the most important people on your trip—our overseas partners, who work exclusively for INCA travelers. Our thoughtful and caring friends in Ecuador, Peru, Galápagos, and Turkey do it all—from getting roses for your sweetheart to tracking down missing luggage to finding a doctor. They're on call, 24 hours a day, just to take care of you.

Adventure with a Conscience

We are proud to be one of the first adventure travel companies whose corporate mission statement expresses principles of ecotourism. We are committed to increasing the awareness of human responsibility toward the environment; to working with conservation organizations to protect the animals, plants and artifacts of the special places we visit; and to supporting the local economies by employing local associates who share our vision. As an INCA traveler you participate in sustainable pleasure in the wonders of our world.
The Nature Conservancy logoWorld Wildlife Foundation logo


The Galapagos Conservancy

Conservation, education and research are vital to the future of these special islands. We hope you will join us in supporting the important work being done by Galapagos conservation organizations.

We have a long partnership with the Galapagos Conservancy—we operate the Conservancy's annual Galapagos cruise, we support their work, and our guests have made significant contributions to the ongoing scientific research projects and local education programs organized and supported by the Galapagos Conservancy.

Support the Galapagos Conservancy


Formed in 1986, the Galapagos Conservancy has its roots in two organizations that merged in 2002: the Darwin Scientific Foundation, an organization which managed an endowment for research in Galapagos, and Charles Darwin Foundation, Inc., an organization dedicated to raising funds and awareness for Galapagos conservation. The Galapagos Conservancy is dedicated exclusively to the long-term protection of the Galapagos Islands. This single focus allows them to maximize the impact of the financial investments of their members, who include individuals and institutions that care deeply about the Galapagos Islands and understand the scientific importance of preserving this extraordinary ecosystem. They advocate through programs of constituency building, education, and fundraising in North America.