The design is based on the boundary of the site and the shape of the mountain. The triangle ring corridor is used as the central node to connect the exhibition halls in a series. This is placed under the water to form a unique submarine village history museum, which brings a shocking experience of space and also complements the history of the fishing village. The terrain height difference is used to address the layer height problems of the different functional spaces, whilst also satisfying the layout of the exhibition hall, taking into account the fluidity and purity of the space.