shallow water view of kuma river bottom in japan

abstract afternoon aqua autumn background bank basin beach beautiful beauty blue bottom bright calm castle clear color environment fast floor flowing fresh grass japan kuma kumamoto landscape light liquid motion movement natural nature outdoor park pattern peaceful pebbles plant rafting rapids reflecting reflection ripple river rock scenery scenic sea season shallow shore stone stream summer sun sunlight surface texture tranquil tranquility transparent travel under vacation view wallpaper water wave wet whitewater winter