For more interest you could hop on a 175 at Frodsham and get off at Warrington Bank Quay - one stop I think. Here you will get a good variety of freight workings including coal trains from Lverpool Bulk Terminal to Fiddlers Ferry and also to Radcliffe PS plus electrics and 66s on intermodal and other workings from Scotland. The station staff are friendly [so I'm told]. It is just a short step from Bank Quay to an overbridge over the line giving access from Arpley yard to Latchford sidings where the Fiddlers Ferry trains have to reverse to gain access to the low level line that passes under BQ station. So you get to see the trains twice - the Liverpool Bulk Terminal trains arrive from the north into Arpley yard, run round, draw forward to Latchford and then run round before heading off west on the low level line. They return an hour or so later. You will also see the Ellesmere Port Class 70 hauled trains here.Middle of the day is probably the best time. You just go straight ahead out of BQ station, parallel with the low level line, and take the first right - a five minute walk. The road immediately after the overbridge goes to EWS Arpley depot which you can partly view from the public road - including 56018 stored at the end of a siding