cx landscape has revealed ‘sea line park’, a green infrastructure and public space proposal, located in melbourne, australia. the design was conceived as a response to the metropolitan planning strategy of ‘plan melbourne 2017-2050’ which proclaims the current challenges, including population growth, traffic congestion, climate change, city amenity, resources and energy shortage, and more. the goal is to imagine what future parks look like under these confronting circumstances by 2050 and beyond.

sea line park 1

if the sea-level rise continues, the linear park begins to transform and reorganize into an ark.
all images courtesy of cx landscape



sea line park by cx landscape offers a solution for the city of melbourne which features many highways across the city, but is in need of a speed link between eastern and western suburbs. the park is a 7 kilometres long city bypass and consists of an above-ground pedestrian and cycle network, in addition to underwater tunnels, creating a distinctive transport gateway and causing minimal disturbance to the existing road system. the expansive space and open forest make the park a great place to be, with assorted recreational facilities and cultural precincts. the open meadow and forest are stringed by an undulant landform throughout the park. 


sea line park 2
sea line park is sheltered from the outer sea but also protects the existing shoreline inside the bay. 



evidence indicates the norwegian seed vault svalbard global frøhvelv is threatened by the acceleration of global warming. the catastrophic moment of sea-level rise is unlikely foretold. one prediction says the majority of western europe will be immersed by 2100 and consequently, over 187 million people will be homeless. more than 66% of the australian population lives in capital cities along the shoreline, who will face an even more difficult situation in this scenario. sea line park will be an ark and a floating seed bank that plays a crucial role in preserving vegetation species from 28 bioregions including hundreds of victorian ecological vegetation classes, to protect and restore the natural habitats, to maintain and sustain the process of biological evolutionary succession.


sea line park 3

the ark becomes a live seed bank in a healthy habitat that can preserve vegetation. on each pod, the native geological environment is set for victoria’s ecological vegetation classes species.




sea line park is a complex of individual pods with different functions, which are produced by 3d printing robots collecting ocean plastic waste. freshwater and clean energy are self-supplied; hence a clean environment and healthy communities are assured. the park will grow resilient and resistant to natural disasters and climate change: when seawater invades the city, the linear park will be segregated from the land, and reform into an island that can cruise away searching a new docking destination or simply float on the sea. a self-sustained living hub, carrying natural resources and civilization, is survived in change. this is the winning entry of ‘china special award in architecture’, in the international competition 2019 by tge jacques rougerie foundation space and sea generation – institut de france, in the ‘sea level rise’ category.


sea line park 4
float depth of each pod can be controlled by adjusting the contained water volume. the connection between each pod can be adjusted to maintain flexibility.




sea line park 5
submarine robots collect the plastic debris then make the reinforced structure materials on the scene to build the prototype. they can also fabricate replacements for maintenance.


sea line park 6
tidal power generation system units from the pontoon bridges have an underwater channel with a power turbine, providing the moving force and generating tidal energy.


sea line park 7
sea water purification system units purification and freshwater storage system, which sucks in the seawater and purify into drinking water. it also controls the production and usage for irrigation.


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the outer skin of each pod is covered by solar photovoltaic panels. it minimises the light blockage into the underwater environment and reduces the threats to sea life.


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car parks are below the surface in each pod connected by sea tunnel. two spots islands connected with pontoon bridge from each end. everyone can enjoy popular sports with world-class facilities.


sea line park 10
the prototype design inspired by the diamond shape totem of the aboriginal tribe wurundjeri integrated the features of a traditional bark canoe.


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overhanging sea balcony along the park fringe allows people to appreciate the ocean views on the south and the cbd skyline on the north. two soft sand beaches terrace down towards the sea level.


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3d printed half of the tidal power generation system unit. 3d printing technology will be used for the production of the park body by consuming the plastic waste in the sea.




project info:


name: sea line park
architecture office: cx landscape
lead architects: george zhuo, jing peng, simon zhao,yu chen, danniel dong




designboom has received this project from our ‘DIY submissions‘ feature, where we welcome our readers to submit their own work for publication. see more project submissions from our readers here.


edited by: myrto katsikopoulou | designboom