I work on the project for better protection of the granitic landscape complex (on about 50 km sq.) with fascinating weathering landforms. Because of that, this area is proclaimed as a Monument of Nature and is under the tentative list of UNESCO. One of the topic in my research is how to propose and establish good and sustainable plan for the monitoring of these unique landforms (hundreds of boulders, large granitoid outcrops etc.). I have some ideas like using LiDAR, drones (for orthophoto and 3D recording), preparing detailed photo-documentation etc., for the following the current state of the landforms and its changes (weathering, anthropogenic destruction, effect of climate changes) through the time. Do you have some experience or recommendations with good practices of long term monitoring of valuable geoheritage?