It starts at 6.30pm and there will probably be several runs of the Headmaster's talk in the Hall to accommodate everyone.
There will be parking via the back entrance of the school but it gets really really busy so arrive early or park in a side street and walk. The school parking will get full later on.
It does get pretty busy so would suggest a chat amongst your family in advance and work out which areas are your priorities. If there are any staff you want to talk to then arrive for the start and see them first.
I would check out the info on the web site before you go so you can make best use of your time.
Science and MFL are usually popular as they have interesting things going on!
There is an new theatre being built to open in September but its just a building site I think so doubt you will be able to view it.
The music block is away from the main school buildings so allow time if that is of interest.
Tech and Art also have their own areas slightly away from the main building and there is a newer science block close to the main area.
Games fields aren't on site but the gym is if you have a particular interest.
Don't be put off by the traditional and in some places dated buildings
There has been quite a bit of updating over the last few years so I wouldn't be surprised if this continues.