滨海下沉式庭院effect

Quick answer：

A滨海下沉式庭院 refers to a sunken garden located near the seaside. It typically features a lower level of the garden below the ground level, creating a secluded space that blends indoor and outdoor environments. The design often includes elements like stepping stones, water features, and lush greenery. The effect aims to create a tranquil, natural retreat with a serene atmosphere.