This cache is not at the published coordinates.
To obtain the coordinates you should complete the Westbourne Wander Adventure Lab:
https://labs.geocaching.com/goto/WESTBOURNEWANDER
If you haven't heard of Adventure Labs before, visit Adventure Labs
As you complete the Westbourne Wander remember to note the values of A, B, C, D, E and F - you can go back to view them in your "journal" within the app if you need to. The lab and bonus are accessible to wheelchair users though assistance may be required due to steep slopes and slightly longer paths will have to be taken in places to avoid steps. Please get in touch if you'd like some advice.
The cache is hidden at
N50° 43. A B C W001° 54. D E F
This cache has been placed with the approval of the BCP Parks team.
Thank you for completing our Adventure Lab!
We hope you enjoyed the stroll and views, and maybe even learned something new along the way! I grew up in the area and it is still one of my favourite places to visit.
You can validate your puzzle solution with certitude.