The Malibu Rapids forms the entrance to Princess Louisa Inlet and is also connected to the Jervis Inlet.

The tidal flow of both inlets pass through this narrow and shallow passage that creates a fast moving (approximately 9 kn or 17 km/h) and strong tidal rapids during the peak flows.

At slack tide, the entrance is virtually flat calm similar to the Skookumchuck Narrows near the entrance of the Jervis Inlet.

[1] The entrance is large enough to allow marine traffic through.

The narrow passage is defined by Malibu Isle and a System B type Lateral navigation beacon on the Jervis Inlet side and Malibu and the mainland on the Princess Louisa Inlet side.