Ipswich

Orwell Bridge, two car parks as you go under the bridge are used to pick up and then just before the Freston Boot Pub there's a car park where the action takes place (a little more secluded). I've seen two couples there, usually parked with interior light on. Pulled up behind one car and the girls gets out and goes to the boot to confirm. Keep a look out best time Sunday evenings around 6-7