‘Semi-Diurnal Spaces’ is a site specific immersive installation in form of a full dome which makes use of local tidal and atmospheric data of South Wales. Locals were invited to experience their close-by waterbody through a meditative environment, connecting to it in a poetic, technological and tele present way. Tidal patterns and atmospheric data such as wind and humidity influence a digital NVIDIA FleX particle system in real-time. The site-specific data influences the gravitational forces, fluid viscosity and flow rate within the dome as a body, resulting in a living digital sculpture and AV experience connecting to aspects of the channel itself.