group observes cascading waterfall in forest

group waterfall forest nature outdoor hiking trekking water stream cascade rocks stones woods trees autumn winter cold wet red clothing training education safety wildlife conservation environment adventure exploration photography landscape naturephotography groupactivity outdoors travel hikingtrip naturewalk teamwork leadership educationalsafari conservationeffort environmentalprotection geology geologicalstudy naturalbeauty waterfallsafari freshwater mist fog damp