Nestled in the tranquil expanse of Xiapu, Ningde City, Fujian Province – where the East China Sea meets the rugged coastline – a remarkable architectural project has emerged. The Blue Insight Cave Space, part of the Ningde "Zero Carbon Island" initiative, is an innovative creation that redefines public spaces. Designed by 3andwich Design in collaboration with Hewei Studio, this immersive underground structure transforms a simple viewing platform into a space that deeply connects with both the land and the sea.
The Blue Insight Cave Space’s core principles, “precipitousness, concealment, and integration,” shape the physical structure so that it almost vanishes into its natural surroundings. Drawing inspiration from the sea caves and coastal reefs that define the region, the team of architects crafted a design that merges seamlessly with the landscape.
The design sees the project discreetly tucked beneath the surface, hidden from the sweeping views of the ocean. Positioned in such a way that it faces the sea without dominating it, the building remains almost invisible, blending into the earth to minimize its environmental impact.

One of the standout features of the Blue Insight Cave Space is its organic, subterranean design. By sinking the building into the ground, the architects have created a space that remains almost imperceptible from above. This approach not only respects the natural environment but also enhances sustainability, leveraging the earth’s natural insulation to maintain a constant interior temperature. As a result, the need for energy-intensive cooling systems is significantly reduced.
The entrance to the Blue Insight Cave Space is a striking semi-circular passage that rises gently from the earth on the western side of the roof. Visitors enter the space and descend into a series of interconnected "cave" rooms, each offering a unique perspective of the landscape and creating a range of spaces for different activities. Much like the natural sea caves that inspired it, the building offers a dramatic sense of scale and intimacy, transforming the journey through the space into an experience that deepens the visitor’s connection with the environment.

The Blue Insight Cave Space serves as a dynamic venue for cultural events, exhibitions, and gatherings, offering both locals and tourists a place to engage with art, culture, and the surrounding landscape. Its distinctive design and immersive experience make it a unique cultural hub.
The space also accommodates catering services, providing a fresh and versatile setting for various activities. With its seamless integration into the landscape, the Blue Insight Cave Space offers a sensory experience that enhances the connection between people and nature.
Source: 3andwich Design