Just to confirm, most w/e's Warton goes inactive, but call em anyway.
Low Level Route (LLR) is recommended if you're VFR-ing it - LPool may be a bit shirty (they seem to have one controller who can be very sarcastic).
But the LLR is easy enough.
Over Crewe, head to Winsford descending to 1250 max on the Mcr QNH, optional call to Mcr on 119.4 for traffic information and let them know you are there, or just keep a listening watch for traffic in the LLR if they sound incredibly busy.
Hint - prob best to be a little below 1250' - most punters go down there attempting to stay spot on at that height. I often go down it at 800 feet or so, staying clear of most others.
From Winsford, head to Northwich, keeping the factory chimneys just to your right (watch out - there are two sets of chimneys - they should BOTH be to your right), then to Warrington and keep going.
Have a nice one! Dont forget your Kiss Me Kwik hat.