This is a part of the Dublin coastal area beloved of James Joyce and immortalized in Ulysses. Located overlooking Dublin Bay, with Booterstown Marsh at its south-eastern boundary, and a frontage onto the main road connecting the sea port of Dun Laoghaire with Dublin city, this site demands both a sensitive and a visionary response. The brief requires an exemplary place of leisure, exercise, health, and well-being. This project forms part of the scenography combining natural elements (the sea, the mouth of the River Liffey, the beaches, and the woods) with artificial ones (the port, the docks, a power station, the railway line). It is conceived as a landscape project on the shoreline between sea and land. The building is a cylindrical and porous volume that opens up enabling the landscape to enter into the heart of the project. Its geometry is inspired by traditional local typologies such as the ringfort – the circular fortified settlements built in Ireland from the Bronze Age to approximately 1000 AD (CD) – or the rampart of Lambay Castle, but also by the astronomical instruments at the Jaipur observatory in Rajasthan, India, or by the John Lautner seaside buildings in California...[+]