Concrete Pool (Gunite)
A gunite pool's initial construction steps differ from a vinyl pool in that you can design whatever you want. You can have swim up bars, beach entries, complex shapes, fountains, spas, and baby pools. It's all up to you.
The walls and floor are lined with rebar and the gunite (or shotcrete) is applied by spraying it on with large hoses. Once sprayed, the crew will smooth and sculpt the walls and steps and you will end up with the bulk of the pool completed. Once this is done, it is sealed, tiled, and plastered.
This is a very durable pool, and is the primary construction of choice whenever you need of pool of any size or durability (i.e. Olympic size pools). And it does tend to be the type of pool that folks first think about when they think "inground swimming pools." It can be decorated with tiles of various colors, and can even have artwork tiled on its walls and floor. It is necessary to occasionally replaster this type of swimming pool, perhaps every 12-15 years, depending on the care of the pool.