20. No person who travels, stays or engages in an activity in a park for purposes other than scientific or management purposes may(1) fell, damage, remove or bring in a tree, a shrub, a plant, a mushroom or a part thereof; however, the picking of edible vegetable products is allowed, except for commercial purposes or in a preservation zone or maximum preservation zone;
(2) paint, deface or remove rocks or parts thereof, pebbles, fossils or other natural formations;
(3) feed animals living in the park or leave food for them;
(4) bring in animals or fish except:(a) guide dogs or service dogs;
(b) dogs or horses used to engage in an activity offered in the park;
(c) to travel across the park or to travel in the park in possession of an animal or a fish kept at all times inside a vehicle or a boat;
(d) to travel or stay in a park or to engage in an activity in the park with a dog kept at all times on a leash and only at the places marked for that purpose;
(5) make fires at places other than those marked for that purpose;
(6) capture insects or spiders.