Inviting a MEDGuide to a day on a boat is an exclusive upgrade and a perfect opportunity to learn about the protection of the Mediterranean Sea and the importance of its biodiversity for our entire planet. The marine citizen science workshop will raise awareness and broaden the group´s knowledge about the transformation of the marine environment in in a fun way. It will convert participants into an active supporter of marine citizen science with specific actions during this excursion. The group can select different scientific topics for the workshop and adjust the theoretical and practical parts to their needs, including swimming, snorkeling or SUP boarding into the activity.