All five went in to Uddens Plantation between Uddens Drive and the Police Station.
Only two are actually on the Castleman Trailway, so you may need to hunt for them a bit. There will be another three posh benches along the Trailway as part of the Great Heaths Project which is why we have avoided a couple of obvious locations.
Many thanks to Nick, Liz and Gareth for your help today 🙂