Imagine the relaxation of a spa, the tranquility of a new-found island paradise, or the beauty of a desert oasis – all in your own backyard! A custom rock waterfall by Lee Santos Custom Rock Waterfalls is the finishing touch that transforms an ordinary pool into an extraordinary swimming pool. When it comes to creating a natural and realistic rock waterfall or custom rock waterfall pool slide we are New Jersey's trusted professionals. Whether you are building a brand new swimming pool, or would like to add on to an existing pool, we can help. Custom waterfalls, spas, grottos or water slides can be added to any new or existing in-ground pool, regardless of its size or shape.