akan lake (akanko) under blue clear sky in summer , hokkaido, japan

green akanko akan mashu national park countryside fishing holiday recreation scenics nature volcano outdoors clouds lakeside landscape hokkaido japan lake travel outdoor blue sky mountain beautiful summer tourism view water scenic forest background sightseeing kushiro environment tree island japanese scenery autumn hill clear pristine body located japan summer's serene waters shimmer reflecting vastness untouched gem emblematic hokkaido's natural beauty tranquility