We felt Mariuxi was very receptive to the needs of the group and knowledgeable about the islands and the animals. She is upbeat and seemed to care about those in her group. Her English was very understandable and we enjoyed hearing about her adventures and travel after we asked her.

Mariuxi Prieto (Mari) was the best guide I have ever had.  I am an experienced traveller and I have had many wonderful guides over the year, but never one as talented as Mari.  Her biggest strength is her encyclopedic knowledge of the Galapagos.  I wish I could have recorded her talks as we walked... she could not only identify every animal and plant we encountered, she was able to tell us anything and everything about it that we wanted to know.  After a few hours in her company I learned to love it when she would excitedly say "LOOK, LOOK" for I knew she had spotted something wonderful.   I tried to stay close to the front of our pack so I could listen to her narrate the Islands.  She is a serious wildlife educator, taking care to talk to us about conservation and preservation in addition to pointing out photo ops.  She never let us forget what a privilege it was to be trusted by the animals and to respect their space and their integrity.  She has a great sense of humour and was very patient and kind with everyone on our trip.  She adapted to the needs of our group and truly conveyed a love of her work.  She often made me feel like I was seeing something rare and exciting-- that she too was captivated by what was around us.  Her enthusiasm, professionalism and passion shone through.  We had many great guides on this tour, but I tried always to seek Mari out.  I cannot recommend her more highly.  She is quite simply the best.  Galapagos is lucky to have such a wonderful ambassador. 

Mariuxi, Mari to her guests and friends, is a fantastic person to spend time with. She is always informative, patient and a lot of fun. She elevated our Galapagos experience from 'special' to 'exceptional'. This was the absolute highlight of our whole two month tour.

We are both experienced travellers and have had the services of a number of guides over the years in all countries, therefore our rating of Mariuxi Preito is based on a broad width of comparisons. We can honestly say she was the best guide we have had , not only because of her knowledge and expertise of the Galapagos islands, but also because of her broader knowledge of cultures in Ecuador , her control of the English language and most importantly her sense of humour. She's efficient, clear and always considerate of her guests.

Mariuxi is a great guide. She is very informative and supportive. She greatly added to our visitor experience on the Galápagos. Her love for the islands shone through all the time. Lindsay