This is a square Hot Tub, very similar to the one that you can find instructions for how to build on this website.
The design comprises of a rectangular hot tub constructed with cinder blocks. There is comfortably seating for 10-12 people and more.
There are two steps down into the tub, generous seating space and 14 Jets.
The diagram will give you all the dimensions you need to construct your own tub.
This is a PDF Diagram Only (multiple images and multiple angles) It is not a 3D CAD File.