I just can't afford to do more than a day trip
Is it somewhere you could feel you'd had a good time just for a day or would you just spend most of it queuing and feel like it wasn't worth only coming for a day?
I would just travel cheapest way and probably look for whatever the version of a travelodge might be and then perhaps have a day to sightsee...
Or has anyone done one of those couch tours day trips? I can't find one from London and really not sure a child could manage to sleep on coach