As every summer, EWAT group is happy to receive abroad students. This time Huong Dang (Arizona State University, USA), Zharfa Nurrachma (University of Illinois Urbana-Champaign, USA) and Rishikesh Veer (BITS Pilani University, India) realized a summer internship with our research group. We hope everyone enjoyed their stay in the beautiful red dot and return to your universities with a little more knowledge. Bon voyage, have a safe trip back home!