GTK intends to procure an unmanned surface vehicle (USV) for mainly marine geological mapping in shallow water environments. The USV will be used to map mainly shallow (1-15m water depth) near costal areas in the Baltic Sea. The USV will be used as a platform for different instruments to conduct e.g. geological mapping. The procurement consists of the USV with minimum requirements and requested optional accessories i.e. additional sensors and systems. The requested optional accessories are non- mandatory. The delivery address for supplies is DDP Incoterms 2020, at GTK, Keimola warehouse Vestrantie 2C, 01750 Vantaa, Finland.