Instream use refers to any type of human activity that occurs within or along a river or stream. A few synonyms for instream use include aquatic use, waterway use, and streamside activities. Other synonyms may include riparian activities, river recreation, and water-based events. These terms are often used interchangeably and may refer to a variety of activities, including fishing, boating, swimming, or kayaking. Additionally, they may be used to describe activities that occur on the banks of a river or stream, such as picnicking, hiking, or camping. Regardless of the specific terminology used, instream use has a significant impact on the environment and must be carefully regulated to ensure the sustainability of these important resources.