Hiking 11 Animal tracks 6 Animal droppings 5 Camping 5 Backpacking 4 Camp sites, facilities, etc 4 Equipment and supplies 4 more ... Rock climbing 4 Wild plants, Edible 4 Collection and preservation 3 Minerals 3 Recreational vehicle camping 3 Rocks 3 Tracking and trailing 3 Wild flowers 3 Berries 2 Cooking (Wild foods) 2 Cycling 2 Medicinal plants 2 Plants 2 Therapeutic use 2 Walking 2 Weather forecasting 2 Arachnida 1 Archery 1 Bicycle touring 1 Birds 1 Canoes and canoeing 1 City traffic 1 Compass 1 less ...