blurred stones under water of alva river in coja river beach with stone walls and small waterfalls, arganil portugal

water river pond reflection lake tree waterway wetland nature shore stream wilderness canal blurred stones under alva coja beach stone walls small waterfalls arganil portugal flowing scenic activity pool swimming stairs metal outdoor weir vacation vibrant color freshness nobody tranquil park beautiful leaves fresh plant summer season riverside leisure environment green tourism travel countryside destination landscape trees fluvial village portuguese europe mata background