Greystones Marina sits within Greystones Harbour on Ireland's east coast in County Wicklow, roughly one hour south of Dublin.

Opened in 2013, it was developed through a public/private partnership between Sisk and Wicklow County Council, with over €80 million invested in the wider harbour infrastructure.

The marina is the deepest on Ireland's east coast and can accommodate up to 250 vessels, with two breakwaters extending over 400 metres providing shelter and straightforward navigation for arriving boats.

On-site facilities include fuel, a boatyard, and international yacht brokerage, while two slipways and storage facilities serve the broader harbour. Five marine clubs are housed in purpose-built clubhouses.

The marina also serves as a popular access point for water sports, coastal walking, and swimming at the nearby Cove, making it a hub for both visiting sailors and the local community.