Plunge pools are becoming more popular nowadays. And it is a lot more versatile and can provide year round enjoyment to the whole member of the family. Typically, the size of it are about 4m x 3m and 5m x 2m, but the size is actually is flexible, so, choose the one that fits best to your area. As well as entry steps it can be great to include some large underwater seats or ledges to lay on and relax.