Ключевые слова: adventure, arizona, backcountry, backpacking, blue, camping, canyon, cliffs, colorado river, environment, geology, gorge, grand canyon, granite, granite rapids, green, inner canyon, landscape, national park, pristine, rapids, reflections, river, rocks, rugged, scene, scenic, serene, serenity, sky, solitude, tranquil, tranquility, travel, water, wilderness,