Boundaryless swimming pool detailed illustration

Quick answer：

A boundaryless swimming pool, also known as an infinity pool, is designed to give the illusion of water extending to the horizon. It is created by building the pool so that one side or more overhangs the edge of a cliff or hill, or is adjacent to a body of water such as a lake or ocean, making the water appear to flow continuously into the distance. These pools are visually striking and can offer panoramic views.