Went to this a few times towards the end of my time in primary school
https://www.campbeaumont.co.uk
Got to do CAD and climbing, what a range of events. Only have good memories.
(To this day, I had no idea where it actually was. Thanks, this tread).
Also went to somewhere in north Wales at the end of my first year of secondary school. Mainly remember one night the vegetarian meal was a place of white rice, lol the 90s. Went gorge walking though, that was cool.