Our Team


Evarist March

He is the director and soul of Naturalwalks. He has turned his passion for nature into his profession. He is a consultant and biologist in botany with more than 20 years of experience in botany and the environment, especially related to the use of plants, algae and edible fungi, relating to gastronomy, health and the development of ecotourism projects and activities. Since 2014, he has been an Interpret Europe trainer and has worked mainly between Europe and Latin America, where he transmits through his experience in the field, the bases of the profession of nature guiding and the use of heritage interpretation tools.



Joan Farré

Joan has a love affair with nature. He dedicates all of his professional activity and free time to different areas related to nature. Trained in natural resource management and actively engaged in landscape conservation, organic farming and the respectful interaction with the environment in leisure, business or sports. As a Naturalwalks guide, he offers a multidisciplinary vision and the vocation of an explorer to spark curiosity and to discover what lies beyond that mountain, under that stone, or inside that flower.



Helena Marques

Attracted by wildlife since her childhood, she earned a degree in biology and later specialized in wildlife nutrition. For more than 20 years she has worked as a nutritionist for different national and international zoos and has formulated diets for all types of animals. Within her specialty she has participated in conservation projects of many threatened species of the Iberian Peninsula. She has also participated as a speaker in many conferences and courses worldwide. Since a few years ago, she performs interpretative routes for both school children and the general public. She enjoys sharing her passion and her goal is to awaken curiosity and promote respect towards nature and the environment in general. Helena brings her zoological approach to Naturalwalks.


Jana Kajnarova

Originally from Czech Republic, she has lived in Catalonia since 2006. She is passionate about travelling and discovering new cultures, about art, nature, her relationship with ecology and she is a lover of the Costa Brava. Graduated in tourism as a tourist guide, she speaks 7 languages. Since 2019 she works as an independent guide also in the field of health and hiking. At Naturalwalks Jana brings her multidisciplinary approach in every sense.



Gerard Acosta

Trained geologist and passionate about interpretation and the divulgation of natural heritage. He is an Interpretative Nature & Mountaineering Guide, specialised in eco-tourism activities. In spite of being from Barcelona, since he was very young he spent much of his free time in nature, which lead him to focus his professional life in this field. When not working as a guide, you can find him doing any kind of outdoor activity, always observing his surroundings and paying special attention to the natural world that surrounds him. In the Naturalwalks team, he contributes his knowledge of geology and the interaction of this in the other fields.



Sílvia Gili – General Coordination and Project Manager

A biologist and philosopher by training, passionate about nature, she has worked for more than 15 years on issues of conservation and management of natural heritage, bringing people closer to nature from different perspectives. Also trained in naturopathy and specializes in food and nutrition, phytotherapy and aromatherapy with a scientific basis. Master’s degree in international cooperation project management, postgraduate degree in citizen participation, science pedagogy and postgraduate degree in values and meanings of nature. He coordinates the postgraduate course on therapeutic forests at the Fundació Universitat de Girona i Sèlvans and provides training on health and nature. At Naturalwalks he manages his team and projects that bring Nature closer to people, from ecotourism and training.



Carolina González Delgado

Consultant, who has dedicated more than 10 years of her professional practice in the design and execution of Policies, Plans and sustainable tourism projects and other environmental businesses. Trained as Ecologist at the University Pontificia Javeriana de Colombia and with a Master’s in Social Politics from the same university. She has also taken courses related to tourism in natural areas in Costa Rica, Bolivia and Japan. Her commitment to the conservation of natural spaces and the development of memorable and sustainable experiences for all, are qualities that are combined with the mission of Naturalwalks.



Naturalwalks’ Guides

Naturalwalks has its team of Nature Guides. All the team has a proven track record in their specialty (Biology, Geology, Environment, etc.), they have specialized training in Heritage Interpretation certified by Interpret Europe, and they speak English as their working language.