Outdoor infinity pool image

Quick answer：

An outdoor infinity pool is a swimming pool designed to give the illusion of extending to the horizon. This effect is achieved by having the pool's edge line up with the natural landscape, such as a hill or the horizon of the sea. Infinity pools are often used in luxury resorts and high-end residential properties due to their aesthetic appeal and the sense of space they create. The concept of an infinity pool originated in Japan and has gained popularity worldwide.