Whatever he does to the web. He does to himself. Traveling on designated trails for your activity leaves room for wildlife and their homes. Shortcutting or using nondesignated trails causes erosion and habitat loss. If you're hiking, be ready to get muddy and step right through puddles.
Boots dry over night, plants take years to recover.
Wearing the appropriate clothing and foot gear can prevent wet, sore feet. Bicyclists must stick to the designated paved bicycle paths. Our cross country trails may seem like a fun place to try out a mountain bike, but they are not designed for bicycles. Riding on them can cause excessive erosion, which washes sediment into Rock Creek which carries it to the Potomac River and the Chesapeake Bay which effects far more than just Rock Creek Park. Biking on nondesignated trails is illegal and could you could get a ticket if your caught.