Eina organizes the Collserola Resilience Thinking Walkshop, a series of activities exploring the relationship between Barcelona and the Collserola mountain range through water. These sessions combine science, art, and walking to address ecological and climate challenges in the area. Activities will take place on July 21 and 5 in Gràcia, and June 28 and July 12 in Sarrià-Sant Gervasi. The activity is free and requires prior registration via this link.