My advice, don’t do the ale trail. It used to be great but it is so popular now that it can be a really crap day out. Lots of hen & stag dos on it and frequent problems with overcrowding and sometimes fisticuffs in the pubs. A lot of the locals don’t like it and it can ruin a nice day out. The pub by the tracks is Mirfield is crap too.
You’ll be better off getting a train to Huddersfield where there are loads of real ale pubs; or train to Todmorden, Hebden Bridge & Sowerby Bridge where you can enjoy yourself with less muppets and have a leisurely drinking session in each town. Or even just explore Leeds more.
I’m not being a killjoy but over the years the ale trail has, pardon the pun, gone a bit off. You do see BT Police occasionally at the stations too so that should indicate that its not all peace, love and real ale. Its a shame ‘cos I used to love it.