We reshape topography to allow reciprocal water flows between the sea and lake. This exchange supports salty seawater entering the lake.  Our constructed wetland provides fresh water to the lake after it purifies the pre-treated water from the treatment facility hence establishing targetted lagoon water quality.  We also design the morphology of lake bottom to improve conditions for aquatic species and improve terrestrial habitats around the lake.  Still, at the heart of the design is people coming to this site for enjoying a wetland environment with carefully selected recreational programs that are designed with respect to the carrying capacity of the site in different seasons.