Lyne Park in Rose Bay, Sydney, is home to two public boat ramps on Sydney Harbour.

The western ramp has vehicle access and is primarily used for launching powerboats, while the eastern ramp, which has no vehicle access, serves non-motorised water sports including kayaking, windsurfing, sailing, and paddleboarding.

A large council car park sits adjacent to the western ramp and marina. The park is accessible by public transport via bus routes 324 and 325 from the city, taking roughly 20 minutes from Circular Quay, or by the F4 ferry to Rose Bay.

The Rose Bay Marina, managed by the council, is located nearby on the eastern side of the bay and offers casual berths and fuel.