boundless swimming pool in reality

Quick answer：

A boundless swimming pool, also known as a vanishing edge pool or infinity pool, is a design feature where the pool appears to extend to the horizon, creating the illusion of a pool that has no edge. It is typically constructed so that one side of the pool overflows into a channel, which empties into a larger body of water or the ground below, giving the impression that the water extends endlessly. These pools are popular in luxury resorts and homes due to their aesthetic appeal and the panoramic views they offer.