You may see a large waterfall on many pools and not even realize a grotto is hidden behind it.
A swimming pool grotto or cave is basically a concrete room attached to the pool. The walls and the roof are constructed of gunite or shot-crete. There are special engineering requirements for construction of a swimming pool cave. Grottos may include a bench or loveseat where you can sit and view the water falling in front of you. They can also feature fiber-optic lighting, a sound system, and hydrotherapy jets. [Read more…]