Ephraim Island Marina is a private marina situated on the man-made Ephraim Island, a 9. 6-hectare development off Paradise Point on Queensland's Gold Coast. The island lies near the confluence of Coombabah Creek and the northern Broadwater.

The marina offers approximately 115 private berths ranging from 10 to 15 metres in length, with power and water connections at each berth.

A key feature is its direct, bridge-free access to the Broadwater, making it a practical base for boaters navigating the broader Gold Coast waterway network. The facility is reserved for residents of the surrounding luxury residential development.