Please note that their grounds are at Hilsea and not in Portsmouth.

From A3M follow A27 to Portsmouth. Turn off at signs for Hilsea and Cosham. Turn left at roundabout. Get into middle lane and follow road round to right.  On the (half) roundabout double back on yourself to head northbound on the carriageway. There is a petrol station (Shell) ahead of you. The entrance to the playing fields is immediately before the petrol station.