This activity is one of the field trips offered since the opening of the Museum of Nature, with more than 16 years of experience offering Mycological Days and Outings. A brief general introduction to the Kingdom of Mushrooms and how to collect specimens in the correct way is made. As we walk through the field, each participant collects in his basket the mushrooms that he finds, with the support and advice of the monitor. Once the collecting part is finished, in the same field there is a Mycology Classroom-Workshop around the monitor-guide for the classification, identification and explanation of the material found. The characteristics of each group are explained, the mushrooms are handled, smelled and broken to learn their differential parts. Special attention is paid to the distinction between edible and toxic mushrooms, highlighting their fundamental differences. Basic notions are given to learn how to photograph mushrooms in the most didactic way possible, which facilitates their later recognition. As a prize, the most diligent "students", always under the final supervision of the instructor, will be able to take home the edible specimens they have collected and wish to taste at home, with some advice on the most recommended recipes.