Swimming pool grottos are a timeless and popular naturalistic design feature that can add drama to backyard swimming areas.

This project turns a plain mud house into a colorful masterpiece featuring a modern underground swimming pool and a cascading waterfall. Every detail, from the pool’s sleek design to the vibrant ...

This fully furnished listing includes a secret wine tasting room and a 116-foot water slide that plunges into an underground pool grotto and enough solar power to live off the grid for a month.