Ключевые слова: abstract, adventure, background, board, bridge, cable, caution, chain, cross, crossing, croswell, danger, depth, design, fence, footbridge, green, hike, journey, landscape, link, michigan, midwest, nature, new, outdoors, outside, park, passage, pattern, plank, pure, recreation, span, suspension, swing, textured, tour, transition, travel, walk, wood, wooden,