Drone flight in the Burguillo reservoir where an endurance test is carried out, we see a large number of participating swimmers with buoys and a controller on a white surfboard

flight burguillo reservoir competition ofendurance participants swimming buoys drone province of avila landscape 10 bit color 2997fps event sport nature aquatic competition career athletes i swim water reservoir physical resistance sporting event scene around view swimmers sweet water proof competence aquatic event endurance swimming natural reservoir competition in the water natural landscape swimmers with buoys reservoir competitionacuatic sport scenery swimming race endurance swimmers natural environment resistance in water