The concept of a "hidden zone toilet" has gained significant attention in recent years, particularly in the context of urban planning, architecture, and public health. A hidden zone toilet refers to a toilet or bathroom facility that is designed to be inconspicuous, often located in a secluded or hard-to-reach area, and may not be immediately visible or accessible to the general public. This report aims to provide an overview of the hidden zone toilet, its characteristics, benefits, and challenges.