National borderless swimming pool plan

Quick answer：

A national borderless swimming pool plan typically refers to a design or concept for a swimming pool that is designed to give the illusion of having no boundaries or edges. This is often achieved through architectural techniques such as vanishing edge design, where the water appears to spill over the edge, creating the illusion of the pool extending indefinitely. Such pools are often used in resorts, luxury hotels, and high-end residential properties to enhance aesthetics and create a sense of openness.