The 21st data acquisition for PLP2022 took place on Tuesday 4th of Octoberr. Ancillary data measurements including sea surface temperature, wind speed, light intensity, Secchi disk depth, dissolved oxygen, GPS position and buoy temperature were performed. UAS RGB, multispectral and thermal images were also acquired. No cleaning of the non-biofouled target was performed (35 days biofouling). Water samples were collected for chlorophyl concentration assessment for the Aquasafe project. Conditions were clear with medium intensity winds and gusts.