Photographer Skip Brown stand up paddle surfs in winter challenging whitewater below Great Falls of the Potomac River, border of Virginia and Maryland, United States of America, North America

one person 60 64 years mature adult mature men people color image vertical outdoors day potomac river river flowing water water travel travel destinations usa north america maryland one mature man only only men adult adults only nature paddleboard leisure activity recreational pursuit water sport sport surfing surfboard skill balance selfie stick helmet life jacket safety protection pants jacket travel destination tourist destination tourist destinations rivers outdoor outside one person only 1 person 1 person only person mature man middle aged man middle aged man middle aged men middle aged men man men male males middle aged middle aged mature adults adults daytime 60 65 60 to 65 60 65 years 60 to 65 years 60s