NOMADIC WATERS is owned and operated by Matthew Walker, Michael Williams, and Mike Grober, and each has his own connection to this area and to this industry.



After starting his guiding career in Colorado in the mid 90's, Michael soon started guiding his clients all over the world. His top destinations included the Russian Far East, Alaska, and Baja Mexico.  Although he was long-time marketer and representative for companies like Patagonia and Orvis, Michael has always been drawn to exploration.  He first met the Walker family when he started his journey fishing in the Amazon in 2009. Michael is a Pro Staff member for RL Winston and Patagonia Fly Fishing.


As Director of Operations; U.S. for Nomadic Waters,  Michael is often the first contact for our guests.  He handles all fishing, marketing, web design, media, corporate communication, travel itinerary, travel Visas, and medical evacuation insurance questions.

Considering hosting a trip with us? Michael is the go-to contact for potential group hosts, and is our travel logistics supervisor. He is easy to reach via email ( or if you prefer, call him direct at 770.315.4873.    

As our Fishing Operations Manager, Michael is responsible for everything fishing on your trip.  Unlike any other operation that we are aware of, Michael fishes with our guests every day, rotating through to make sure everyone is up on the day's strategies and happy with their experience.  He is an open book for our guests, always willing to help with anything from knot tying to casting lessons.  As a mentor to our guides, a liaison with our guests, and the manager of our jungle fishery; Michael is truly working where his heart is.  


Matthew's family has a remarkable heritage in the Brazilian Amazon.  His Grandfather and Father have spent much of their lives working with these tribal communities.  Now Matthew and his brother William carry on the family tradition, representing a third generation of Walkers to live and work in these communities. 

As Director of Operations; Brazil, Matthew oversees our fleet logistics and manages our staff.   He is fully fluent in English and Portuguese, and provides a vital link between guests and staff.  Working tirelessly around the clock, Matthew oversees everything from our fishing boats/mother-ship's maintenance logistics, to  managing our fuel/food/water/ice/drinks inventories, to permits and documentation.  


As Director of Community Relations, Matthew plays a critical role in managing our partnership with our local Communities as well as the Federal and local agencies with which we work.  These roles are a perfect match for Matthew's skills and personal strengths. 


Mike was two when his family moved to the Brazilian Amazon. Upon graduation from college, he returned to the Amazon to work for a bauxite exploration company. He returned to the USA after 11 years to pursue a graduate degree.


Mike is the Founder and Executive Director of a non-profit devoted to helping small innovative mission organizations around the world frame and fulfill their vision. Most of his focus these days is directed towards the building of a community center and orphanage in the Peruvian Andes near Cusco.


Mike has four children and two grandsons. He speaks Portuguese and Spanish, loves to travel and considers the Brazilian Amazon his second home.

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