Quote ="~The Wires~"First time visit to Langtree Park.
Where is best for parking?'"
This depends which way you are coming into St Helens. But if you come via the Linkway (A590 I think it is - a dual carriageway) then head for the town centre (signposted). Look out for the Park Inn (Radisson) Hotel on your right just after you have gone under the railway bridge. Keep in the right hand lane and turn right at the next set of traffic lights. There will be a mini roundabout. You want to take a right off that (I can't remember exactly which exit) and park up in the multi storey car park that you will see on your right (set behind a glass fronted store which is probably still empty but may now have become a garden centre!).
The charge to park in the multi storey for rugby traffic is £1 per car.
There are other car parks around St Helens but if you don't know the town then the one I've mentioned is the most straightforward to get to, assuming you come into St Helens via the Linkway.
Hope that helps!