Many research projects are carried out in large networks of actors, expanding and reaching beyond the geographical, sectorial, industrial and technological borders. Collaboration of such magnitude faces many challenges, one of which is capturing and deploying learning in a large network. The purpose of this paper is to generate, capture and deploy learning in a smart specialisation cluster in a large network. This study is based on a European Union funded project called Dŵr Uisce, a collaboration between Ireland and Wales. The findings show that forming the smart specialisation cluster and creating the right climate contributes to learning.