Ключевые слова: active, alto, athlete, brown, california, cross, dish, dry, exercise, exercising, foot, foothill, footpath, hike, hiking, jogging, leisure, lifestyle, nature, outdoor, palo, park, people, person, recreation, running, shoe, shoes, sole, sport, sports, stanford, sun, sunlight, trail, training, tree, trek, trekking, trip, walk, walker, walking,