The Thematic Pavilion for the EXPO 2012 planned by the Austrian architecture office soma will be opened in Yeosu on 12th of May. soma’s design proposal One Ocean was selected as the first prize winner in an open international competition in 2009.The main design intent was to embody the Expo’s theme The Living Ocean and Coast and transform it into a multi-layered architectural experience. Therefore the Expo’s agenda, namely the responsible use of natural resources was not visually represented, but actually embedded into the building, e.g. through the sustainable climate design or the biomimetic approach of the kinetic façade. The cutting-edge façade system was developed together with Knippers Helbig Advanced Engineering and supports the aim of the world exhibition to introduce forward-looking innovations to the public.The pavilion inhabits the thematic exhibition that gives visitors an introduction to the EXPO’s agenda. The Best Practice Area on the upper level functions as a flexible stage for organizations and institutions. The permanent building is constructed in a former industrial harbor along a new promenade. After the EXPO the pavilion will stay an attraction for tourists and local residents.We experience the Ocean mainly in two ways, as an endless surface and in an immersed perspective as depth. This plain/profound duality of the Ocean motivates the building’s spatial and organizational concept. Continuous surfaces twist from vertical to horizontal orientation and define all significant interior spaces. The vertical cones invite the visitor to immerse into the Thematic Exhibition. They evolve into horizontal levels that cover the foyer and become a flexible stage for the Best Practice Area. Continuous transitions between contrasting experiences also form the outer appearance of the Pavilion. Towards the sea the conglomeration of solid concrete cones define a new meandering coastline, a soft edge that is in constant negotiation between water and land. Opposite side the pavilion develops out of the ground into an artificial landscape with plateaus and scenic paths. The topographic lines of the roof turn into lamellas of the kinetic media façade that faces the Expo’s entrance and draws attention to the pavilion after sunset.