Yas Marina is at the heart of the iconic Yas Island and is bound by the Formula 1 race circuit. The 175-berth marina caters for boats from eight metres long to superyachts up to 150 metres. Delivering this exclusive piece of infrastructure required the implementation of several proven methodologies. This included building a diaphragm wall for the pontoon area and block wall for the eastern waterfront, while the excavation of a basin to four metres below sea level resulted in a temporary earth dam on the seaward side. Quay walls were built along the other three sides of the excavation using precast concrete units. To stabilise the backfill to the 6 metre high marina walls, a geotextile filter was installed which was selected for its durability in the marine environment.