Just noticed that the multimap map that ETL's website used doesn't exist anymore.
The best postcode to use is SS17 0PY.
It looks like the previous 0PX postcode is no longer valid somehow.
You are looking for Buckingham Hill Road, Linford. We plan to have the place well sign posted from the A13 on the day.
STB have a club finder map thingy also, which has the club placed very well.