An unmistakable sign of the presence of wild boars is wallows.
Wild boars wallow throughout the year, but especially during the summer months. Whether it's permanent, often multi-year wallows with continuously moistened soil or short-term muddy puddles on less-used forest paths, these places are frequented by wild boars.
Nearby, you can observe resting spots where wild boars cool off and rest, as well as so-called rubbing trees, against which wild boars rub themselves and leave marks and muddy paintings.