River Floodplains, Erosion, Sedimentation Britannica A river is a natural flowing watercourse, usually freshwater, flowing Archeology River Monitoring Program Grand Canyon National Park (U.S River Wallpapers Top Free River Backgrounds WallpaperAccess. The River Nature Double Low Bikini Bottom by FARM Rio captures tropical essence with its bold blue and white botanical print, inspired by lush river landscapes. Its distinctive double low rise silhouette gently embraces the hips, complemented by soft side gathers that add a touch of fluid motion. This piece blends playful patterns with a relaxed yet confident cut, inviting you to bask in natures vibrant spirit with effortless charm and warmth.