1996 Discovery 1 3.9 V8i (petrol/gas)

I'm new to Landies and know just enough about cars to get myself into trouble.

On the back left corner of the LH rocker cover, there is a hose (see pic).

In the Workshop Manual it seems like it's where the PCV intake filter should be (according to the diagram)

Question is, what is it? where should it connect?

Thanks in advance.

 

Wider shot of where it is?

 

Mystery solved.
PCV feeder, would normally go to a fitting on the airbox, which mine doesn't have (prev owner swapped with cold air intake)
Will be installing a fitting on the air intake to hook it up.