The upcoming European Ecosystem Services Partnership conference will held from 15-19 October 2018 in San Sebastian (Spain). Emilie Crouzat, Ignacio Palomo and Sandra Lavorel will host the session B8 – Gaining height: Mountain social-ecological systems as sentinels of change during this conference. This session will provide the opportunity to strengthen the community of practice working on ecosystem services in mountain landscapes. This includes discussing future activities and outputs in the ESP Mountain Biome Group.