Images via: (Clockwise from top left) 
“Day 164” by Sylvia Currie (cropped from original), “Footprints” by andy_5322 (cropped from original), “Beetle Climbing a Dune — EXPLORED” by garlandcannon (cropped from original), “Poster of footprints” by McKay Savage, “dsc_0352” by Tone Walker (cropped from original), “footprints” by kimba Howard, “You know what they did last night…” by Satish Krishnamurthy (cropped from original)
