Man running on riverside trail

20 24 years adventure athlete blue sky caucasian color image concentration copy space countryside day determination effort endurance energy environment exercise fitness forest front view growth healthy living hiking journey man merlin motion nature one person oregon trail outdoors path people photography recreation remote river rogue river runner running shadow sunny trail training vertical waterfront young adult adventuresome color colour concentrating daytime development entertainment exercising exertion health male movement natural negative space one outside person power resolution rural sky sport stamina sunshine tramping traveling travelling tree trip twenty walkway water western european white space woods