Description of shareable PLP2019 data set: Info on the Plastic Litter Project 2019 can be found in the University of Aegean’s Marine Remote Sensing Group web page https://mrsg.aegean.gr/. The present data set contains: i. Sentinel-2 L1C granules catalogue in a word document named: “PLP2019 Sentinel-2 Image Catalogue”, ii. Sentinel-2 L2 subsets after pre-processing with ACOLITE i.e. after atmospheric correction, sun glint removal and land making. Data are given in netCDF format (.nc) in a folder named “S2_satellite_images_nc”. iii. UAV images with the plastic targets for each date. UAV images are organized in the folder named “UAV_photos”, iv. Point vectors with percentage plastic presence for each Sentinel-2 pixel in the folder “Vector_Points”. Point vectors are given in ERSI vector and are organized by the acquisition date. Also, for each date an excel file is provided to locate and describe the name of the actual pixel.