I have done alton towers many a time -it used to he our yearly family holiday growing up - and I was last their in 2018 during Halloween week (busiest weekend there in the year)
I have also been as an adult on quieter weekends and during the week, have got there for park opening, and I can tell you now, they won't be able to do just 3 hours there, they wouldn't even see more than one section of the entire theme park in that time!
I have also been as an adult on quieter weekends and during the week, have got there for park opening, and I can tell you now, they won't be able to do just 3 hours there, they wouldn't even see more than one section of the entire theme park in that time!