This is the fourth article in our The journey to Nature Positive series, where our specialists illustrate how Nature-based Solutions (NbS) can tackle societal challenges, offer additional benefits over engineered solutions, and promote a Nature-positive world. In this article, co-authored by our specialist Dr. Ida Bailey and Dr. Max Bodmer, Head of Nature-based Consultancy at rePLanet, we explore methods for sampling and quantifying nature and biodiversity for large and dispersed projects.