Great overnight stay in Penong before heading across the Nullarbor. Very clean amenities, drive through sites, so you can stay hitched up, TV and Telstra reception, good hot showers. A good place to stop and sort out your fruit and vegies before going through Quarantine to WA and SA. $30 power and water for 2 adults.
Make sure you check out the Windmill outdoor museum across the road from the Park. This is the town of Windmills.
The town also has a Pub, general store and fuel outlet.