Explore this step-by-step primitive build - watch the full transformation from hillside excavation to an enchanting underground swimming pool hidden beneath nature’s surface.

There are few things more refreshing on a hot summer day than taking a dip under a cascading ... and well-known falls around the country and world, those that allow swimming are much rarer.

There are few things more refreshing on a hot summer day than taking a dip under a cascading ... and well-known falls around the country and world, those that allow swimming are much rarer.