The pitches & pavilion are a short walk from the car park on Earl Richards Road North. It should all be signposted but an outline is as follows:

Walk out of the car park through the entrance that you came in by. When you reach Earl Richards Road North turn right into the University of Plymouth (not up the hill towards the main road.)
Walk towards the Plymouth uni buildings & then on the grass around the right-hand side of the main building.
You should now pass through the barrier onto Salmonpool lane. Turn left & walk past the kiddies playground on your left.
Now you can either turn left & enter the pavilion enclosure or cross the bridge & turn left towards the pitches.

A map showing this walk (pink dashed line) is available.

A map of the pitches is also available.