This dataset contains unoccupied aerial vehicle (UAV)-based photogrammetric point clouds, orthophotos, UAV-borne laser scanning point clouds, and terrestrial laser scanning point clouds of three nature reserves of the Sandhausen inland dunes in Baden-Württemberg, Germany: Pflege Schönau, Pferdstrieb Süd, and Zugmantel-Bandholz. The three surveyed areas each have a size of about 10 ha. UAV-based photogrammetric data of the three sites were collected in February, September, and October 2021 with a ground sampling distance of 2.0 to 2.5 cm/px. UAV-borne laser scanning data were collected in August and September 2021 and resulting point clouds have pulse densities between 123 and 227 pts/m². Additionally, the site Zugmantel-Bandholz was surveyed with a terrestrial laser scanner in May 2022 using eight scan positions. GNSS measurements were recorded in-flight and/or taken on the ground and were tied into the SAPOS reference network (RTK/PPK) to georeference the data. This dataset captures the current state of the inland dune in 2021 and 2022, in particular the topography and vegetation cover in different seasons of the year.