On Monday 04/10/2021 we performed the 22nd Sentinel 2 data acquisition for PLP2021. Due to windy conditions no UAS data were acquired. Metadata acquisition included wind speed and direction, light intensity and water turbidity using a Secchi disk. Biofouling accumulation on the HDPE target is dense, effectively changing the colour of the HDPE mesh, which is slightly submerged below the water surface (about 10-20 cm). Due to adverse weather conditions, target removal has been scheduled for Thursday 07/10/2021.