An 'infinity pool with no boundaries in the air' refers to an architectural design concept where a swimming pool seems to extend endlessly into the sky. This is achieved by cleverly engineering the pool's edges and surrounding landscape, often using mirrors or reflective surfaces to create an optical illusion. Such designs are popular in luxury resorts and high-end residential projects, where they offer stunning views and a sense of spacelessness. They require careful planning and engineering to ensure structural integrity and safety, as well as to blend seamlessly with the natural environment.