Within the EAGLE program many Earth Observation applications and techniques are introduced and practically executed with quite some computer work. However, remote sensing research also requires a sound understanding of the study area. Field work is therefore a crucial aspect of Earth Observation and learning how to plan, organise, collect and analyse field campaign data is a key of many research approaches. The EAGLE students organized and conducted field work in the University Forest as well as in Demmin and learned a variety of methods and approaches.