Young Blonde Girl With Full Breasts Shows Off On A Rocky Bank At The River Outside In The Nature

• Limnology: The shoreline of a pond, swamp, estuary, reservoir, or lake. The grade (slope) can vary from vertical to a shallow slope.
• Freshwater ecology: (1) The location of a riparian zone habitats: along the upland and lowland river and stream beds. (2) The ecology around and depending on a marsh, swamp, slough, or estuary.
• Fluvial: A riverbank or stream-bank: the terrain alongside the bed of a river, creek, or stream.
• Navigation: A singular or succession of shoals of alluvium, such as silt and sand, constricting or blocking access to an area. This can be in the course of or at the mouth of a navigable river, in a harbor, or on the continental shelves. An example is a sandbar.