If you're really tight for space, this plunge pool will be perfect. 
Features:
At Lido we utilise a steel slip form to fabricate ou concrete plunge pools. 
We use a specific civil grade concrete mix to ensure maximum density and strength.
Furthermore, we also add an additive to ensure that they ar watersealed.
Our pool forms reach a strength rating of 60Mpa in 30 days and are shipped at a strength of 24-32Mpa. 
Our finish is smooth to the touch and is suitable for tiling, all lining finishes and can even be left raw.
We include lifting ferrules to ensure a secure balanced lift for transportation and installation.
Specifications:
Internal Diameter (width): 230cm
External Diamter: 247cm
External Depth: 180cm
Circular seat/ step around the perimeter. 150cm(diameter)
Circular deeper section (160cm deep)