THE CACHE IS NOT AT THE LISTED COORDINATES but you might park there.
Solve the puzzle to enjoy a short walk in the Essex countryside. You are looking for a magnetic film pot, so bring your own writing implement.
Congratulations to The Avenue Two for a quick FTF.
The cache is at:
VTSC SBTE KFYV DABS YWLU ZPDQ BIGR OIZH SBFZ OATN KFOE SKUR LJPZ ZSYT VEZO KROW UKCS PANN EGEF MMVR NWWR LFBN OYSN CYST VEZO LGRP ZPDQ KGRI OIZH OETB PANN DABS ZJSY SLPO ZSYT SBFZ ZJSY KFYV YMPA CYTS
You can check your answers for this puzzle on GeoChecker.com.