On Wednesday 21/07/2021 we performed the 8th data acquisition for PLP2021. Sentinel 2 multispectral data of the two large area targets were acquired, along with very high resolution images from a DJI Phantom 4 pro drone. Metadata collection included wind speed and direction and turbidity using a Secchi disk. Spectrometer hyperspectral measurements were performed using an Ocean Insight Flame mini spectrometer. Biofouling accumulation is expanding on the whole of the submerged part of the HDPE mesh target, at parts covering the mesh holes completely. Conditions were calm, with low winds and no cloud cover over the deployment area.