The annual GRAND Collaboration Meeting took place in Karlsruhe from February 12 to 14, 2020. Due to the beginning of the Covid-19 pandemic, our colleagues from China could not join us in person, but joined us remotely. In spite of the shadow already cast by the sanitary situation, it was a very successful meeting, where key elements of GRANDProto300 were discussed.
The two main highlights were: long discussions on the site selection and on the feasibility of the scientific objectives of GRANDProto300 (with the particle detector array). Several challenges were brought up on both points, to be studied in the coming year.
Many thanks to Markus, Tanguy, Ralph and Tim for organizing this successful event, right in time before everything went online!