The Maasaiada is a charity mountain race held in Campins, Barcelona, within the Montseny Natural Park. It offers three distances: 35 km with 2050m of elevation gain, 25 km with 1420m of elevation gain, and 15 km with 840m of elevation gain. The 2026 edition is scheduled for March 1st. Proceeds will cover organizational costs and support non-profit organizations.