footsteps in sandy dunes

adventure america arid beautiful blue california calm climate death desert desolate dry dune dunes earth ecology far footprint footprints footstep footsteps global hike hiking holiday hot landscape loneliness lonely lost mountain mountains national natural nature nevada nobody outdoor outdoors park peace peaceful pure purety quiet ridge ripple ripples sand sandy scenery scenic serene serenity sky southwest step steps summer temperature tourism tourist trail tranquil tranquillity travel travelling trekking usa valley vast walk walking warm warming weather western