A swamp is a wetland that is forested. Many swamps occur along large rivers where they are critically dependent upon natural water level fluctuations. Other swamps occur on the shores of large lakes. Some swamps have hammocks, or dry-land protrusions, covered by aquatic vegetation, or vegetation that tolerates periodic inundation. The water of a swamp may be fresh water, brackish water or seawater. Reed is a common name for several tall, grass-like plants of wetlands. Bottoms of reeds on the lake. Lower part of the reeds near the lake. Depths and ranges of reeds. Closely the surface of the lake. Soil and sands near the fresh water. Sparse plants just around the lake. Inside the reeds. Broken and divided into two pieces reed. Pond small wetland close up macro swamp quicksand marsh. Crane dolly bottom footage true. 4K UHD 3840×2160 30p.