How to find The Lazy Fish

My Tom Tom didn't know the way to The Lazy Fish near Cockermouth.  The directions the website www.thelazyfish.co.uk say

Turn left signposted Wythop Mill. After a few hundred metres you will see St Cuthbert’s Church on your left and a private lane opposite. Turn right up this lane and Brook House is the first house on the left. Just over the bridge is a parking area for The Lazy Fish.

So, google St Cuthberts Church gives us a OS Map reference, NY163295.  You can't enter this on your TomTom, so then I found a site to help convert from OS to Latitude and Longitude.

http://www.movable-type.co.uk/scripts/latlong-gridref.html

This gives us 54°39′14.69″N  003°17′53.01″W