In the last series of visits in the AeroTwin staff exchange program, LARICS PhD students Marko Križmančić and Robert Milijaš spent three weeks at the University of Seville (USE), Spain from January 15 to February 6. They were working at the Department for Systems and Automatic Engineering under the supervision of Professor José Ramiro Martinez de Dios. Marko worked on designing a new mission planning algorithm for multi-robot systems with the help of USE professor Ivan Maza, while Robert compared the SLAM algorithms and hardware used by the GRVC group at USE to the approaches used in LARICS. During the exchange, several fruitful meetings were held which resulted in plans for future scientific publications.