Hidden Spa - Water Hope is a spa and mud bath complex designed by IDEE Architects in the coastal sand dunes of Bãi Dài, Cam Ranh, Vietnam. Rather than appearing as a visible architectural object, the project is embedded within the landscape, allowing the natural topography of the dunes to remain largely intact.
The spa is organized around a central water courtyard that forms the spatial and environmental core of the project. In a region characterized by intense sunlight, strong coastal winds, and limited vegetation, the inward-facing layout creates a sheltered microclimate where water, shade, and greenery soften the harsh conditions of the surrounding terrain.
Visitors enter the complex through shaded walkways framed by rows of timber columns and stone walls. The architecture gradually unfolds toward the central water court, where small planted islands and reflective pools create a calm and contemplative atmosphere. The bathing spaces and mud treatment areas are arranged around this inner oasis, allowing each room to maintain visual and environmental connection with water and vegetation.
The architectural language is defined by a restrained palette of locally sourced materials, including stone, timber, and bamboo. These materials were chosen for their durability in the tropical climate and their ability to age naturally over time. Thick stone walls provide thermal mass, while bamboo ceilings and open corridors encourage natural ventilation.
A mature tree that originally stood on the sand dune was preserved during construction and became a symbolic anchor for the project. Over time, the presence of water and shade has allowed vegetation to grow around the spa, gradually transforming a previously barren dune into a small oasis.
Hidden Spa - Water Hope demonstrates how architecture can operate as an extension of the landscape rather than a dominant object, creating spaces for rest, bathing, and quiet reflection within a fragile coastal environment.
Hidden Spa – Water Hope / IDEE Architects
Lead Architects: Tran Ngoc Linh, Nguyen Huy Hai
Team: Tham Duc Hung, Nguyen Dac Nguyen, Vu Thi Thanh Tam
Design year: 2021
Cam Ranh, Vietnam
English
