The NSRI Slipway on the Breede River is a public boat launch site situated within the Breede River Estuary, which spans approximately the lower 52 km of the 322 km-long Breede River, from the mouth at Witsand upstream to Malgas.

The estuary covers a total surface area of around 455 ha and maintains a permanently open mouth into the Indian Ocean at Sebastian Bay.

The slipway serves as a listed public launch site used by a range of estuary users for activities including water skiing and fishing. As a designated launch site, boats have priority use of the ramp at all times.

Launching requires a valid municipal boating permit, and no vessel may be put in the water without one.